ca.kayak.com is also available in French. Voir le site en français.

Prices are in Canadian Dollars.

Find cheap flights from Louisville to Ontario

Find cheap flights from Louisville to Ontario

Round-trip
Economy
Louisville (SDF)
Ontario
Thu. 28/1
Thu. 4/2
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Ontario

Good to know

Low season

April Best time to beat the crowds (5% less expensive on average)

High season

September Most popular time to fly (0% more expensive on average)

Average price round-trip

C$ 326 (price for this month)

Good deal one-way

C$ 113 or less

Top tips for finding cheap flights to Ontario

  • Looking for a cheap flight? 25% of our users found tickets from Louisville to Ontario for the following prices or less: to Toronto C$ 231 one-way - C$ 256 round-trip
  • High season is considered to be January, February and December. The cheapest month to fly to Ontario is January.
  • Morning departure is around 11% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs - booking Ontario flights

How does KAYAK find such low prices on flights to Ontario?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Ontario?

What is the Hacker Fare option on flights to Ontario?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ontario?

Top 4 airlines serving Louisville Standiford Field to Ontario

Scores according to KAYAK customer reviews

7.9
Delta
Overall score based on 28,935 reviews
8.1
Boarding
7.8
Comfort
8.5
Crew
7.8
Entertainment
7.5
Food
Airline reviews

Pros: "new plane good flight"
Cons: "seat space"

Cons: "Seats are tight"

Pros: "All of it"
Cons: "Nothing Best flight"

Pros: "Crew was excellent, seats are never excellent"

Cons: "Needed assistance for limited mobility to make connections at ATL was not provided. Caused us to miss connections and had two falls trying to get around. Air France was terrible. Very limited food and beverage service left us hungry and thirsty on 7 to 10 hour flights."

Pros: "The flight landed early. Check-in staff were great."
Cons: "Boarding was a debacle. Flight was oversold. Passenger had trouble boarding when their group was called."

Pros: "There was an available seat next to me"
Cons: "I had to walk from one end of Minneapolis airport to the other end all within 35 mins to catch a connecting flight, tram was not in service. Not fun!!!"

Pros: "Delta crews are very friendly and helpful. Seats are 'good' on the E175 plane - better than the cramped CRJ200 on some other short flights. We boarded early, left a little early and arrived early. Nothing to complain about, except maybe a crying baby behind me, but that's not Delta's fault. :)"

Pros: "The crew was amazing. Kat and the other stewards were very friendly."
Cons: "Maybe the option for free upgrade to first class if flight is not full??"

Cons: "Delays were unfortunate, but the gate area at LaGuardia was way too crammed, hardly any seats, and poorly organized"

Pros: "Crew was amazing."

Cons: "Good"

Pros: "Good boarding process. Friendly flight attendants."
Cons: "Its a long, long flight so can't really complain too much. Overall, it was a good flight."

Pros: "Nothing"
Cons: "Everything. Awful plane, seats and service"

Pros: "Good snacks"
Cons: "Nothing"

Pros: "Helpful staff"
Cons: "I didn’t have anything negative to report regarding this flight."

Pros: "No issues"

Pros: "Extra leg room was great"
Cons: "Entertainment system was flickering"

Pros: "Enjoyed the ease of check in the spacious gate and the cleanliness of the planes cabin"
Cons: "No complaints"

Pros: "Crew"
Cons: "No upgrade"

Pros: "Crew were helpful and pleasant"
Cons: "Seating was uncomfortable, cabin was cold and no blankets available, food was just ok, plane had lots of empty seats yet everyone was squeezed into 3 in a row making it uncomfortable, no updates from captain or crew as to where we were in the flight....."

Cons: "The baggage drop attendant was very unhelpful when I asked if she could help me sort out an issue (when I checked in online for the second leg of my trip, i paid for my bag then but they wanted me to pay again for my first flight) and just dismissed me and said she couldn't help, making me pay again for my bag. First time I've ever had an unpleasant experience with Delta."

Pros: "On time, great service, a lot of legroom."
Cons: "Nothing."

Pros: "They had available seats on an earlier flight and I was able to get home super quick! My checked bag also made it which was great!"

Cons: "Could not get seats assigned until day check of check in. We did get seat together. Asked clerk said no booked . Seat did not recline. Saw crew had one row for themselves."

Pros: "Left on time all went well in Atlanta"
Cons: "Impossible to figure out what to do in Toronto at Canadian Customs. You move from secure to unsecure then back to secure. It’s a mess and nobody tells you what to do or where to go. Picture process took 4 times. Nobody tells you that you have to transfer your own bags from Delta to West Jet. I even asked in a Toronto and they said no and nobody in Atlanta told me to collect my bags. So bags never made it until the next AM. The West Jet rep was very good and located the bags and they were delivered as promised. You should provide 3 page detailed instructions on how to handle Toronto. I am a seasoned traveler by the way. I’ve never seen anything worse. I could go on and on."

Cons: "Z"

Cons: "was a difficult transition from delta to west jet in Toronto and we almost missed the flight"

Cons: "Flight attendant took my complimentary new order but then forgot to bring me the food."

Cons: "Could not get the boarding pass to print at the self serve kiosk. Had to wait in line for assistance."

Pros: "Delta and Westjet staff are of great help to me."
Cons: "Not applicable"

Pros: "The staff is very friendly. Most pleasant airline I've flown with."

Pros: "On time as scheduled."
Cons: "N/A"

Pros: "Left early and arrived early."
Cons: "Smallest bathroom on a plane I've ever seen. Could barely sit down without my knees banging into door or wall."

Pros: "The flight attendant named Steven went so far beyond the call. He was attentive, he fixed our video system when no one else could and when he learned we were celebrating an anniversary he brought us a present. He was awesome!"

Pros: "Refurbished plane. Lighting was good"
Cons: "No TV screen"

Pros: "Overall the actual flight was good..landing was kind of hard but I'm alive so not stressing that"
Cons: "..but the multiple delays are ridiculous, I would not fly Delta if I had a feasible choice."

Cons: "No space in the seats"

Pros: "Smooth flight."

Pros: "Very friendly staff and the onboard meals were surprisingly good. Korean Air may quite possibly be my favorite airline."

Pros: "Good Entertainment"
Cons: "Seats"

Pros: "Crew"
Cons: "3 hours there before the departure."

Pros: "Entertainment offered, USB charging options."
Cons: "Too much food offered."

Pros: "Getting updates on the phone allowed me to stay put and work instead of running back and forth to the gate."
Cons: "Flight was supposed to get in at 10 pm and we did npt end up getting in until 2am"

Pros: "Didn't know you could get complimentary meals anymore! The movie selection was awesome too!"
Cons: "Why is the complimentary Wi-Fi and messaging only for T-Mobile subscribers?"

Cons: "Not a fan of having "final boarding call" announced to run to the gate, only to sit on the plane at the gate for 30 min because of a scheduled delay at my destination. I know the flight wasn't very full, but that cost me an opportunity to eat dinner. I had to cancel a fast food order because I thought I'd miss my flight!"

Pros: "That a delta plane actually had seat back video screens- First delta flight ever that I've been on that did. But every ones screen froze up just over an hour into the flight."
Cons: "Even though the Atlanta to Toronto arrived 'early' I had barely 20 minutes to get to the other plane- I would not have made it with out the amazing staff of weather and the Toronto airport. I use a wheelchair and even zipping through as fast as I could I was 15 minutes late arriving at the gate. I booked this flight thinking I had at least and hour and a bit between flights. Thankfully others on my flight were also late so the Ottawa bound plane did not leave on time"

Pros: "When you are delayed, there is not much to commend."
Cons: "Delayed. That pretty well says it all."

Pros: "The crew was good and the flight was smooth."
Cons: "Somehow we were double booked and double billed. We got to the airport 3 hours early and checked our bags. All 3 were lost and searched. Everything was put back precariously and there was shampoo and lotion everywhere."

Pros: "The pilot got us to Toronto."
Cons: "Everything. Contrary to most of my experiences with WestJet over the past nineteen years, this was the worst, overall, trip I have ever had with them, from delays, to missing my connecting flight, to gross incompetence with the staff, to a failure to even empathize with our situation (with a baby!)."

Pros: "The crew were nice!"
Cons: "But this was like flying in an antique from the 20th century. No screens, AC not working well, tiny cabin. One of the bathrooms didn’t even have a sink."

Cons: "We missed the connection between the two flights. They booked me for a flight the next morning. They did not provide voucher or reimbursement for food or lodging."

Cons: "We were on tarmac for an hour waiting to take off"

Pros: "The food"
Cons: "The staff insisted on putting bags underneath seats for a 13 hours flight..."

Cons: "Delays left us in the plane for almost 1 1/2 hours before leaving Toronto."

Pros: "The crew was friendly and although the aircraft was small, it was very comfortable!"
Cons: "There was no in--flight entertainment and only drinks and cookies for food."

Pros: "Crew are always the best on WJ:) All smiles, real people, love it :)"
Cons: "On board entertainment not working :("

Pros: "The movies"
Cons: "So far so good"

Pros: "Horrible check in"
Cons: "Rude staff"

Pros: "Very friendly and helpful crew."

Cons: "Flight from Fort Lauderdale to Toronto heavily delayed, missed connection."

Pros: "Left on time or mighty close to it. Arrived on time. Safe and mostly smooth flight. Flight attendants and pilot was friendly. Liked the price for a direct flight."
Cons: "Tight squeeze in the seats in terms of having the back of the passenger in front of you right in your face practically."

Pros: "Service was good. Reached our destination before scheduled time"

Cons: "The flight was 5 hours 40 min late The Flight attended (her name was if not mistaken Staysy or start with S) was staying at the door as a security guard in a detention center without formal greeting “welcome on board”, no smile at all and later jumped on me regarding my bag. I was seated when her collage pulled my back bag from the compartment to make room for a bigger luggage, left it on the seat next to me and said will take care later. With frustrating tone Staysy showed up and command me to put it under the seat. I told her to put it under and not to command me with this tone... as it was not my decision the bag to be there. She did put it under but kept making comments and even did not apologize. A frustrating flights - over 5 hours late with spicy flight attendant attitude."

Cons: "I had safety concerns on the flight from YVR to Toronto because seated in the exit row were two individuals who were brought to the gate assisted on a cart and had to wait for assistance to get on and off the flight. They had very poor ambulation which made me nervous as these people have agreed, by sitting in the exit row, that they are able and willing to help in the case of an emergency evacuation. This was not a safe situation and was noted by several passengers."

Pros: "Crew were friendly, efficient and helpful."
Cons: "Entertainment options were limited to what was being broadcast on regular cable channels. No movies or on demand content were available. Assigned seats were different than what was reserved during booking."

Pros: "At least they flown us back home.."
Cons: "Our flight to Toronto delayed by almost 3 hours and this was updated only 20 minutes before boarding, staff at checkin counter giving senseless excuses for the delay like crew members yet to come,weighing and balancing the baggage for fuel upload and even funny thing that captain just started his paper work for departure ( this is 2 hours after scheduled departure ). Did not offer any food coupons or any kind of compensation to anybody which created lot of inconvenience for travelers with young children..show some empathy Westjetters and operate like a professional carrier not like a curb side cab driver.."

Pros: "Wonderful family trip...comfortable seating, pleasant crew and enjoyable flight."
Cons: "Lots of walking in the airport"

Pros: "Friendly staff"

Cons: "WestJet seems unable to stick to a schedule. Three of my four flights were delayed and a connector flight through Toronto was cancelled altogether just after midnight, leaving me stranded at Pearson Airport. The ground crew were disorganized and unable to provide clear answers – other than their complete assurance that WestJet bore no responsibility for providing hotel accommodation."

Pros: "The flight was delayed, so I was going to miss my connector. They made some calls and got me booked on a British air flight straight to my destination. Thank you!"

Pros: "Everything borded on time. Cabin crew was very accommodating in allowing me to move seats to an empty row."
Cons: "NA."

Pros: "Nice service."

Pros: "On time, courteous staff"
Cons: "Seat does not lean back"

Pros: "The cabin crew were outstanding on WS709 today. This is my fourth trip with Westjet, and today stood above. Diane was beyond efficient and pleasant while maintaining a smile and grace, while a number of unattended children were onboard. My seat was changed, and that's fine - mostly because of the manner in which the crew at Pearson handled it. Then, I couldn't resist giving up my re-assigned (centre) seat so that two sisters could sit together. The two folk in my row were lovely, they talked more than I did, but when I joined in, it was a genuinely pleasant conversation. Three strangers, meeting per chance. The woman next to me had given her seat up for a family to sit together, so it really was a chance encounter! Diane needs to be promoted!"
Cons: "While things happen, I wonder why when I was readied a seat, it was missed that two children, sisters, were sitting in separate rows? Should they have automatically been assigned two seats together - they were unaccompanied. As happens, an 'aunt-like' woman was seated next to them, and again, Diane was an another in-charge auntie!"

Cons: "Tiny chairs"

Pros: "Good service but pretzel is not great good. Very Nice stewardesses."
Cons: "The seated are too small, a bus is more confortable."

Pros: "Talia is an excellent stewardess—She takes good care of people"

Cons: "Five hour flight delay due to a flight attendant not showing up on time, not taken care of in any way"

Pros: "Very spacious. Not an overfull flight Seems like they offer a lot"

Cons: "- The unprofessional way the staff "sorted us out". Especially the lady at check-in. Our flight was from NY to Toronto and then connecting after a nine-hour layover from Toronto to London. On all flights, we got the seats in the middle of the aircraft allocated, which is challenging when you are on crutches. - The second flight to London was in a terribly old machine where the overhead compartments were not well equipped to accommodate my crutches. The only way they fitted was at the very back underneath all the luggage. So when I asked the flight staff to help me get my crutch to go to the toilet, as I could not get it myself, he asked: "do you really have to use it?". I considered that very rude! - The selling of the entertainment systems took forever, which meant that the food sale was very late. Almost 4 hours into the flight on an overnight flight is really late! Especially when people would prefer to sleep. Due to my medication, I had to wait for food, but it took forever. All in all, not the best experience"

Pros: "Extra leg room, staff very friendly and helpful."
Cons: "No tv screens on back of seats, liquids should be offered more"

Pros: "Always friendly"
Cons: "No complimentary drink all of a sudden"

Pros: "There was a cute doctor and someone made a joke about the movie Alive. That was funny."
Cons: "There was a sick lady and she wouldn't stop coughing. That was gross"

Cons: "having to walk outside the plane in the snow to get on the bus and vise versa. it was cold and I got a bad cold...."

Pros: "I received adequate notification for check in and updates"
Cons: "There was a slight delay though we managed to arrive on time"

Cons: "We were told not to take the late flight to TO as Westjet would not hold the connecting flight (TO to Gatwick) for us. This meant our TUI connection in Gatwick to Chambery would have been wasted along with bus transfers. West jet did not offer us AC flights that were available to keep us near to our schedule. We ended up cancelling the Westjet flights and buying AC flights to Heathrow at a cost of $3300 + $300 taxi to gatwick + abandoned bus to Gatwick Westjet did offer us a flight on Sunday ! In the end, we are not sure if booking thru Kayak was part of the problem as Wesjet staff said ..... Oh you booked thru a 3rd party Comments ?"

Cons: "Flight was cancelled then rescheduled on a flight that was over an hour delayed. We almost lost our connection to Hong Kong as a result. Made for a very stressful journey with 77 year old parent and 8 years old child long waiting/ tiring time and running to gate our flight."

Pros: "Cancelled the flight and was utter chaos with no direction what so ever."
Cons: "Staff would not communicate with the passenger's."

Cons: "Delayed flight and disorganized boarding in Kingston made it a bit frustrating."

Pros: "The flight was ok and the customer service overall good."
Cons: "A bit disappointing that the flight didn’t even have monitors to watch movies , you got to use your own tablets or cell phones. I prefer to save batteries on my devices when I’m travelling :)"

Pros: "No issues"

Cons: "One of the crew members was not careful enough while taking something out of the overhead cabinet and dropped something on my head while I was asleep. The crew apologized but it should not have happened in the first place while the aircraft was flying smoothly and there was no turbulence of any kind at that time."

Cons: "It was crowded on the flight, fully booked"

Pros: "It was on time and short"

Pros: "The food was good"
Cons: "Your website and westjet allowed price gouging to happen. I had to spend about $2500 for two new flights, to replace two flights that were cancelled on September 8th due to Hurricane Irma. The previous flights cost total $678 for two people from FLL to EDI. But you allowed us to be charged $2500 for the same exact route, and we had to spend due to the emergency. The very next day the President of the USA stated it was unethical for price gouging to happen. I request at least 50% refunded back"

Pros: "Free wine and beer."
Cons: "Our flight for Toronto on Sept. 5 , # WS589 was delayed of about 1 and half hour; so, me and about 20 other passengers missed our connection in Toronto. The crew said that Pearson airport was on a shut down due to severe thunderstorms. But the weather was nice and sunny when we arrived Toronto; in fact my connecting flight ( Hainan airlines HU 7995 had left 20 min. earlier- on time- for Bejing. The crew in Westjet plane told me that all airlines were delayed in Toronto airport due to bad weather , and so that I would not miss my connecting flight."

Pros: "Nothing in particular."
Cons: "We were delayed by 30 mins. We waited another 20 mins at the gate because there was another plane there. We only got cheetos as a snack."

Pros: "Humor of the flight attendants #Joeneedsaraise"
Cons: "Delayed by 2 hours."

Cons: "the wifi is awful"

Pros: "Flying portion was fine."
Cons: "Flight delayed for mechanical issues.... then upon landing trapped in cabin filled with exhaust then again trapped in a locked hallway."

Cons: "We had to wait for a flight attendant in Louisville going to Chicago, which made us a little late to OHare. Then we had to wait at OHare for another plane to leave. I ran from the one set of gates to the other, but I missed the boarding, even though the plane was still there. I was extremely disappo"

Pros: "Pilot did great job, superb smooth landing."
Cons: "The two male flight attendants could have been a bit more friendly."

Pros: "Would’ve loved if the flight from Louisville to Charlotte weren’t delayed 2 hours for mechanical reasons!"
Cons: "The flight could’ve waited for us instead of leaving on time for Allentown!"

Pros: "Honestly, nothing!!"
Cons: "Everything. This airline has disappointed me for the last time."

Pros: "It was average."

Cons: "4 hour delay is unacceptable"

Cons: "Seats are too close"

Pros: "Crew was nice and made sure we were all comfortable before taken off :)"
Cons: "I was thirsty on the way back but we were not offered anything to drink so I waited till we landed to buy a drink, other then that was very enjoyable. Plan on using America airlines again"

Cons: "Old aircraft ...what’s with the non-assignment of seats until the last minute unless you pay extra !"

Pros: "Entertainment available excellent"
Cons: "Seating space seems to narrow"

Pros: "liked the crew, but didn't know that we would have to check our bags, since the plane was small & had no overhead. Also, I wish I would have been told ahead of time, that I would have to check my bag again going home, even though the plane did have overhead space. Other than that, I love AA!"
Cons: "I didn't get very good instructions about picking up my carry on bag plane side. I was told to go to the baggage claim instead by a staff member when I came out of the plane, but this was wrong, so I ended up waiting a very long time for them to bring me my carry on bag to the baggage claim."

Pros: "didn't get my flight you said booking was guaranteed refund 24 hours but when i call to change or refund you said the airline would not change or refund. you didn't live up to your end. if you refund i would consider tat but for now. i would never use kayak again and will post my experience"
Cons: "you could have change my return when i called 2 hours after or 18 hours after now i have to pay 500 to get home you should live up to your rules and refund my money"

Cons: "When I checked in on line, I was asked to choose my seat. However, there were no seats available that were free of added charge. I had to pay another $50.00 for a seat. I do believe, when I have a confirmed ticket, I should not have to pay an additional charge for a seat."

Pros: "We were early but couldn't get to the gate!"
Cons: "Same as above"

Pros: "The flight attendant"
Cons: "Service was poor."

Pros: "Friendly crew, excellent food options, very clean cabin."
Cons: "I had to pay for water."

Pros: "Prompt on time service."
Cons: "N/A"

Pros: "Seats which we selected where great"
Cons: "I would have like the opportunity of moving up to preferred seating. Would be willing to purchase it"

Cons: "They changed my flight schedule that made me have to arrange my travel plan"

Pros: "Nothing"
Cons: "Someone stole an ipad and that forced us the be delayed for 2 hours"

Pros: "My flight was delayed many hours so I wasn’t going to make my connecting flight in NY it to Toronto, There service agent was great and found me a seat on a later flight that was direct. Overall, happy with their service found me the best flight available."
Cons: "I never could figure out why the flight was delayed, there were a couple of other delayed AA flights too. I was supposed to get to Toronto at 2pm for a 5pm presentation, but I didn’t get in until 9. I also felt their website was deceptive or maybe needs updating,When I bought my ticket It stated that I would get 3 bags complimentary since it was Canada that wasn’t the case, I was charged for $60 for both."

Pros: "British Airways got us on another flight to Dublin through Heathrow."
Cons: "Plane was late missed the connecting flight. Aer Lingus/American Airlines refused to help us find another flight to Dublin. I called Vagama customer service and the attended refused to help get an additional flight or confirm our returning flight would be held."

Pros: "On time"
Cons: "Small seats"

Cons: "No personal TV’s and no food for purchase"

Cons: "The layover was too short we missed our connecting flight. How did Kayak even allow us to book such an itinerary. Staff with the airline was also rude! Never will I book with site ever again!Rude"

Pros: "Arrived early"
Cons: "American airlines lost my bag... Customer service in LAX is non-existent."

Cons: "Made us wait over 2 hours on the tarmac before take off inside the airplane."

Pros: "Lucked out with extra legroom seat. Seat was broken though."
Cons: "The whole customs process is a seemingly endless mess."

Cons: "The cleaniless of the flight can get better"

Pros: "Flying AA. Excellent flight"
Cons: "No wifi. Pay only"

Pros: "Besides the seating problems everything else went smoothly"
Cons: "I was not able to get seats assigned to us before arriving at the gate. We got put on the very last row by no choice of our own. The seats are not designed for the average adult, possibly the worst ergonomics of any seats I've ever encountered. Extremely uncomfortable flight."

Pros: "The crew were friendly and did their job effectively"
Cons: "Lack of seat space Planes seemed old Minimal overhead storage room—carry on fits all other airlines overhead but struggled to get bag in compartment Also, no help from crew with this Seats recline nearly into lap of person behind"

Cons: "My daughter is in a wheelchair. She was a carry on (I e I carry her on board). The staff knew this but failed to notify the airport. Hence, we had to deplane without a jetway. I didn’t. The steep stairs made it unsafe. Had to wait a long time for a handcranked lift. No one really knew what they were doing and they wanted to put her in an adult wheelchair in spite of my identifying safety issues. My daughter was scared and upset. Epic failure on AA’s part. Communication breakdown on many levels. Shameful."

Cons: "Departed late and missed connection due to an overage of fuel. The crew took an additional 45 minutes to defuel the plane of 8000 gallons. Wth?! Have to stay overnight in Chicago now."

Cons: "After being delayed without any explanation, I was told that I would not have my purchased 1st Class seat. To add to that I received no service In economy."

Pros: "Great Wifi! After reading bad reviews it was actually ok. Flew business on the A319 (single aisle plane) and it reminded me of qantas 737. I think for a short haul day flight I may just put up with economy instead for the price. Food is ok. I think with AA you have to pick your aircraft, it makes a difference what plane you fly as to what you get in business class. FA's were great. Overall I'd fly them again. Food was ok."
Cons: "They asked everyone to put the window shades down but I fly window seat because I like looking out! It was a day flight too! LAX T4 lounge is being refurbished so you need to go to T5 and make sure it's not the regional lounge!"

Cons: "Too many delays"

Pros: "the choice of movies was great. I two very well presented selections."
Cons: "Outside of one drink service we never saw or heard from the crew. Not one food item for purchase was ever offered. I am glad I ate in the terminal or it would have been bad for me."

Cons: "The service had much to be desired. The stewardess who was serving our section was curt and rude. Whenever I would ask for a napkin (that she had forgotten to give with my drink, I might add) or any other questions, she would come off as annoyed and as if I was testing her patience, which I did not appreciate as I had been having a horrible experience with American Airlines as it was. Also, why do you not serve milk with your coffee? The flight only served half and half, and I cannot have cream in my coffee at all. So unless you want to clean up my diarrhea in your toilets, I suggest you start giving options. It's not like milk is a scarce delicacy in the US. How is it that other airlines offer both milk and cream, but I get told by your staff, rudely, that half and half "is milk" and that it's all you have? Unbelievable. I hate to be a b*** but honestly this isn't the first time that I got treated like this on AA. I always seem to have a horrible experience with this airline."

Cons: "I don't like the fact that American Airlines try to get me to put my small carry on bag below both ways in the cargo area it is against FAA to have batteries down there. I have 30,000.00 in cameras and they tried to get me to do this both times saying the bag will not fit. The Flight Attendant each time say that it fits JUST FINE! I'm going to try to avoid American Airlines as much as I can!"

Pros: "not much"
Cons: "not much"

Pros: "My flight wasn't completely full, so I had a row to myself. The pilot was excellent; takeoff and landing were very smooth."
Cons: "I had to gate check my luggage because of the small plane size. Had I had a shorter layover this could have caused an issue for me."

Pros: "Everything was fine except it was inexplicably late!"
Cons: "It was over 30mins late for no reason!"

Cons: "Old plane and the movie app kept cutting out"

Pros: "Courteous crew, easy experience smooth "get in and get out" process"
Cons: "Flight was late due to weather but that's beyond anyone's control obviously"

Pros: "They crew tried their hardest"
Cons: "There was no one at the gate to deplane us in Toronto. There for I missed my westjet connection home by 5 minutes. I was looking at the plane by the jet way unable to get on. AA staff would not pay for a hotel for being so late to Toronto because the wether was not thier fault, which I agree. But the lack of staffing was and a hotel should have been provided to me due to this. I will never fly America Airlines again due to my incoming flight to Toronto and the out bound to Philadelphia (cancelled on the way to Philly for no apparent reason)."

Pros: "Renovated planes, modern entertainment options that were free, charging by outlets."
Cons: "Overbooked flight, poor resource management, nickel & diming for snacks on a 5hr flight, lounge access (not Priority Pass, charge $60 for a single visit), no room for onboard luggage, safety video fluff"

Pros: "The crew was attentive and boarding went smoothly. The seat had more room under the seat in front of me, my purse was not jammed in."
Cons: "I hate paying extra for almost every seat on the plane. It's a con job. Food selection was terrible. If I'm paying anyway, give me better choices. No monitors in plane at all. Entertainment needs to be viewed on a tablet or laptop of some sort."

Pros: "Crew worked hard under difficult circumstances but flight was not well equipped"
Cons: "First we boarded and then had to deviate and move to a different delayed flight. No head sets, tv did not work , seat was very uncomfortable."

Pros: "Crew was good. Food was ok."
Cons: "Athens check and security processes caused huge delays resulting in our missing our connection in Toronto and having to spend the night. NONE of the entertainment systems worked on the flight. We were rebooked without an opportunity to make our original flight which was possible. Agent also unkind"

Cons: "The plane was old and tired. The seats are just a step up from a park bench. There was virtually no entertainment system to speak of."

Cons: "Roomier Seats more isle space and comfortable seating. Better head sets"

Pros: "The customer service wait is extremely long especially when u get hung up on and start all over . But one man was very helpful in changing to accommodate me next day"

Cons: "The WiFi did not work the entire flight (4 hours from Chicago to Seattle) and despite passengers inquiring multiple times, we were never informed whether to expect it to start working or not. Streaming TV was also poor quality on the United app."

Pros: "Landing safely"
Cons: "Late departure. Poor food sale selection"

Cons: "The flight leaving Houston was delayed by over an hour due to some problems finding another captain for the flight thus extending the layover time by at least four hours. As a result I didn't get back to Toronto until around 12:30 in the morning. Otherwise everything else was fine."

Pros: "The crew was amazing and very helpful and kind. The flight was delayed but the crew was positive and boarding was very fast and efficient."
Cons: "The morning snack had egg and I am allergic to egg so I could not eat it. There was no non-dairy creamer for my coffee."

Pros: "The crew was great, the seat was very comfortable. The flight was quick and seamless."

Pros: "On time departure & arrival"

Pros: "Pleasant flight crew and comfy seats, even in coach."

Pros: "I like the entertainment screen"
Cons: "The mini pretzel.,,"

Cons: "Flight delayed until 8pm then sat on the plane in Toronto for 45 minutes waiting for a gate and because we were sent to a parking area with numerous other planes and ended up getting boxed in and couldn’t get to our gate earlier. Nothing offered to the passengers during this time, not even water."

Pros: "Comfy seats! So nice when you have a comfortable chair"

Pros: "Despite delays the captain was communicative and gracious."
Cons: "Only one person was at the gate checking passports on a full flight so embarking took a very long time, making us late. Entertainment system was pay-only and the screen couldn't be turned off so we had ads flashing brightly in our faces the whole trip."

Cons: "The delay!!!"

Pros: "Attendants were friendly"
Cons: "They could not find our flight in their system which was very nerve wracking."

Pros: "Nothing"
Cons: "Cancelled the flight two hours before departure. Weren't apologetic."

Pros: "Flight was smooth and comfortable. Flight attendants were kind and courteous."
Cons: "The speaker system was a little loud when announcements were made."

Cons: "Had to pay for entertainment. This was my 50th flight this year and first time any airline has no free entertainment. Probably will boycott united on future flights"

Cons: "Late by almost an hour"

Cons: "No seatback screens."

Cons: "For the second time in a row, the Houston Airport crew did not transfer the luggages to Air Canada."

Cons: "."

Pros: "Polite and friendly staff."

Pros: "Greg care and service from those stationed on board."

Pros: "I overslept my flight and United was able to find the next available flight into Denver which helped me tremendously. The guy on the phone was very pleasant and helped so much."
Cons: "Boarding was disorganized and hard to understand. Flight was delayed because of paperwork that wasn't signed, which caused me to miss my connecting flight."

Pros: "There is no food essentially. No entertainment unless you have your own electronic hand-held device."
Cons: "See above."

Cons: "Very long walk from aircraft to immigration"

Cons: "The plane wasn't very clean. And I might have liked another option besides a weird trail mix for a snack."

Cons: "It was freezing on the plane."

Cons: "Flight was delayed for 2 hours"

Cons: "Seats are too close."

Pros: "The Embraer ERJ-170 has comfortable seats!"

Cons: "Flight was delayed. Time was posted at gate for new time. Went to get dinner and when we returned to gate saw that the time had been moved UP from previous anouncement and practically missed our flight."

Cons: "Tight seating for transatlantic flight. More importantly avoid Toronto at all costs. Need to clear customs and go back through security again on a connecting flight. Takes forever. Food was not good at all."

Pros: "Had own entertainment did not use however like the app availability. Considering all of the weather delays I am very impressed and happy with service."
Cons: "Unfortunately there were no hot beverages, but cold were served."

Cons: "More leg room"

Pros: "Snacks"

Pros: "Amazing plane with great features! Incredible staff!"
Cons: "Bathrooms should be bigger"

Pros: "Crew were all friendly and trip went very smooth in the air. Havent flown for years so computer checkins were a bit overwhelming at first but staff again very helpful. thanks for a great experience Mildred Johnson"

Pros: "Nice and happy/friendly people working for the airline..will take this airline again"

Cons: "Flight was 1 1/2 hours late departing!"

Pros: "Flight was on time"
Cons: "Check in was terrible"

Pros: "Empty plane do had lots of space. Super comfortable."

Cons: "Crew in First was a joke. Not even offered water. What a terrible service."

Pros: "The seats were comfortable and spacious place were awesome :) The snack was very good, the best I had so far while flying. Service was great :)"
Cons: "I didn't like that because I was 4th group to get in the plane, all the space above my seat was full and I had to go put my carry-on quite further down. It didn't cause me any problem because my connection flight had a long layover, but if had not been, I could have been late."

Cons: "i missed my flight because my flight left Toronto late"

Pros: "that the plane landed in one piece"
Cons: "it was late 1.5 hours it badly was overbooked hand luggage hysteria lack of aircon while on the ground overall attitude of crew"

Read more about Delta
COVID-19 information

Safety measures for airlines flying from Louisville to Ontario

Airlines flying from Louisville to Ontario have enacted additional safety measures and adjusted policies to better accommodate travellers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Louisville to Ontario

Mandatory masks

Masks required on board, masks provided on flights from Louisville to Ontario

Social distancing seating

Middle seats unavailable to book on flights from Louisville to Ontario

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Louisville to Ontario

Book cheap flights from Louisville to Ontario

Recent round-trip flight deals

24/2
Wed.
1 stop
American Airlines
12h 46m
SDF - YYZ
26/2
Fri.
1 stop
American Airlines
5h 08m
YYZ - SDF
24/2
Wed.
1 stop
Delta
8h 20m
SDF - YYZ
26/2
Fri.
2 stops
Delta
8h 26m
YYZ - SDF
19/7
Mon.
1 stop
WestJet
20h 06m
SDF - YYZ
24/7
Sat.
1 stop
WestJet
8h 01m
YYZ - SDF
1/4
Thu.
1 stop
United Airlines
7h 08m
SDF - YYZ
15/4
Thu.
1 stop
United Airlines
5h 50m
YYZ - SDF
24/2
Wed.
1 stop
American Airlines
6h 00m
SDF - YYZ
26/2
Fri.
1 stop
American Airlines
14h 19m
YYZ - SDF
24/2
Wed.
2 stops
Delta
9h 40m
SDF - YYZ
26/2
Fri.
2 stops
Delta
8h 48m
YYZ - SDF
19/4
Mon.
1 stop
United Airlines
8h 57m
SDF - YOW
21/4
Wed.
1 stop
United Airlines
9h 08m
YOW - SDF
24/2
Wed.
2 stops
Delta
9h 40m
SDF - YYZ
26/2
Fri.
1 stop
Delta
5h 20m
YYZ - SDF
1/4
Thu.
1 stop
American Airlines
18h 40m
SDF - YYZ
15/4
Thu.
1 stop
American Airlines
4h 16m
YYZ - SDF
24/2
Wed.
2 stops
Delta
9h 40m
SDF - YYZ
26/2
Fri.
2 stops
Delta
8h 26m
YYZ - SDF
12/2
Fri.
1 stop
United Airlines
4h 31m
SDF - YYZ
19/2
Fri.
1 stop
United Airlines
4h 53m
YYZ - SDF
19/4
Mon.
2 stops
WestJet
8h 24m
SDF - YOW
21/4
Wed.
2 stops
WestJet
7h 51m
YOW - SDF
24/2
Wed.
2 stops
Delta
9h 40m
SDF - YYZ
26/2
Fri.
2 stops
Delta
8h 48m
YYZ - SDF
19/4
Mon.
2 stops
WestJet
8h 24m
SDF - YOW
21/4
Wed.
2 stops
WestJet
7h 51m
YOW - SDF
12/2
Fri.
2 stops
United Airlines
26h 59m
SDF - YYZ
19/2
Fri.
1 stop
United Airlines
4h 15m
YYZ - SDF
1/4
Thu.
1 stop
Delta
4h 50m
SDF - YYZ
15/4
Thu.
2 stops
Delta
8h 18m
YYZ - SDF
6/2
Sat.
1 stop
Delta
3h 58m
SDF - YYZ
24/2
Wed.
1 stop
Delta
5h 39m
YYZ - SDF
6/2
Sat.
2 stops
Delta
6h 51m
SDF - YYZ
24/2
Wed.
1 stop
Delta
5h 39m
YYZ - SDF
6/2
Sat.
2 stops
Delta
6h 51m
SDF - YYZ
24/2
Wed.
1 stop
Delta
5h 39m
YYZ - SDF
6/2
Sat.
2 stops
Delta
6h 51m
SDF - YYZ
24/2
Wed.
2 stops
Delta
8h 06m
YYZ - SDF
Show more results
-
1
  • Round-trip
  • One-way
  • Multi-city
  • Trip Builder
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First