C$ 177 Find Cheap Flights from Louisville to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Ontario departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Ontario, as well as popular online travel agencies
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Best Ontario Flight Deals from Louisville

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Ottawa
Ottawa1 stopC$ 177
Ottawa
Ottawa1 stopC$ 177

Cheap Flight Deals from Louisville to Ontario (SDF-CAON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to Ontario

Mon, 19 May - Sun, 25 May
 Logo
9:55 a.m. - 12:30 p.m.SDF-YYZ
26h 35m1 stop
 Logo
7:55 a.m. - 9:00 a.m.YYZ-SDF
25h 05m1 stop
C$ 415
Find Deal
Fri, 20 Jun - Sun, 22 Jun
 Logo
1:57 p.m. - 2:05 p.m.SDF-YYZ
24h 08m2 stops
 Logo
6:30 a.m. - 2:12 p.m.YYZ-SDF
31h 42m2 stops
C$ 429
Find Deal
Wed, 21 May - Tue, 27 May
American Airlines Logo
7:50 a.m. - 12:10 p.m.SDF-YYZ
4h 20m1 stop
American Airlines Logo
11:32 a.m. - 9:03 p.m.YYZ-SDF
9h 31m1 stop
C$ 673American Airlines
Find Deal
Wed, 23 Jul - Thu, 31 Jul
American Airlines Logo
6:34 a.m. - 5:40 p.m.SDF-YYZ
11h 06m1 stop
American Airlines Logo
7:15 a.m. - 7:29 p.m.YYZ-SDF
12h 14m1 stop
C$ 686American Airlines
Find Deal
Wed, 23 Jul - Thu, 31 Jul
Delta Logo
12:17 p.m. - 8:53 p.m.SDF-YYZ
8h 36m1 stop
Delta Logo
6:15 a.m. - 2:54 p.m.YYZ-SDF
8h 39m1 stop
C$ 689Delta
Find Deal
Wed, 16 Jul - Sun, 27 Jul
Delta Logo
12:17 p.m. - 9:28 p.m.SDF-YUL
9h 11m1 stop
Delta Logo
6:00 a.m. - 2:54 p.m.YUL-SDF
8h 54m1 stop
C$ 719Delta
Find Deal
Fri, 20 Jun - Mon, 23 Jun
United Airlines Logo
2:52 p.m. - 10:04 a.m.SDF-YYZ
19h 12m1 stop
United Airlines Logo
7:47 p.m. - 10:16 a.m.YYZ-SDF
14h 29m1 stop
C$ 755United Airlines
Find Deal
Fri, 11 Jul - Mon, 21 Jul
United Airlines Logo
8:40 a.m. - 5:26 p.m.SDF-YUL
8h 46m1 stop
United Airlines Logo
9:45 a.m. - 9:57 a.m.YUL-SDF
24h 12m1 stop
C$ 765United Airlines
Find Deal
Mon, 15 Sep - Wed, 17 Sep
WestJet Logo
7:00 a.m. - 6:13 a.m.SDF-YYZ
23h 13m2 stops
WestJet Logo
8:00 p.m. - 11:34 a.m.YYZ-SDF
15h 34m2 stops
C$ 813WestJet
Find Deal
Wed, 23 Jul - Thu, 31 Jul
WestJet Logo
7:14 p.m. - 10:58 p.m.SDF-YYZ
3h 44m1 stop
WestJet Logo
8:00 p.m. - 9:48 a.m.YYZ-SDF
13h 48m2 stops
C$ 828WestJet
Find Deal
Useful Info

KAYAK's insights & trends for Louisville to Ontario flights

Get data-powered insights and trends into flights from Louisville to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Louisville to Ontario?

The average price of all round-trip flights from Louisville to Ontario clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Ontario on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Wednesday is the most expensive day to fly from Louisville to Ontario. For your return ticket, we recommend flying on a Tuesday and avoiding Thursdays for the best deals.


Good to know

Low seasonNovember
High seasonJune
Cheapest flightC$ 177
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.
Flight from Louisville to Ottawa

FAQs - booking Ontario flights

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

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville 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?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Louisville to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Louisville to Ontario with an airline and back with another airline.

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

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Louisville to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ontario?

    The cheapest time of day to fly to Ontario is generally in the evening, when round-trip flights cost C$ 474 on average. Morning departures are around 18% more expensive than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is C$ 561.

Top airline flying from Louisville to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
WestJetOverall score based on 2832 reviews
7.9Crew
7.1Comfort
6.2Food
7.4Boarding
6.1Entertainment
Airline reviews

It was good, flight was on time, boarding was smooth and done in zones, food was good too but there was no form of entertainment. Luggage’s were intact. So an overall good flight

8.0 ExcellentAnonymous, May 2025YEG - YOW
Read more WestJet reviews

It was good, flight was on time, boarding was smooth and done in zones, food was good too but there was no form of entertainment. Luggage’s were intact. So an overall good flight

The staff were the friendliest I have encountered in years. Absolutely great!

Plane changed to one with no entertainment system or ability to serve hot meals

Flight was delayed 3 times. Then cancelled due to pilot being timed out. They refused hotel vouchers. Gate attendants were very rude and could not help you at all.

Terrible. First my return flight was rescheduled to a terrible itinerary. Paid for window seats where there was no window. All of my seats were mediocre or terrible despite paying in advance for them. Zero onboard entertainment- it didn’t work or wasn’t available. If it was available there were zero instructions provided. I also didn’t like being forced to check my carry-on luggage. Delta screwed me around on the way home with a 2 hour flight delay that caused me to miss my connecting flight so my luggage did not come home with me but had to be shipped on a later flight. Just grateful they found it. But Delta attendants lied about the delay - a supervisor at an info booth assured me they would compensate because it was the fault of the pilot arriving over an hour late but when I went to the boarding gate to get help with this they insisted it was a ground problem in Toronto and not Delta’s fault BUT another flight to Toronto was going around the same time with no delays and West Jet agents in Toronto said there was no notice of any ground delays at the airport (which I have on video). When I went back to the info desk to find the Delta supervisor she was gone. I had to run through Toronto airport asking any availabile West Jet staff I could find to book a new flight home as I didn’t have a connecting flight anymore. Baggage wouldn’t help OR give me my bag back. Because we were one of the last flights into the airport all staff had left. I finally decided to go through security to find an agent at a boarding desk and was lucky to catch one before she left to get booked onto the next flight home in the morning but I still had to spend the night in the airport. It was awful!!! I was scared, travelling alone and desperate to find help - which was a extreme challenge. Maybe 2 out of the dozen people I asked were pleasant. The rest difficult. I felt betrayed. Oh and I kept getting directed to the information desk in Toronto airport but no one was on staff and I used the phone to try calling someone but I kept getting useless recording. I will not be flying Delta or West Jet again. It will be a long time before I feel safe to travel again. Many tears. This was an awful and highly stressful experience.

No access to any entertainment No food other than a cookie or pretzels even tho flight was over the supper hour Seats very close together and very little leg room Staff was very good

Good. Would be better if the carry on baggage was free.

Horrible. I checked out myself that it seems that I can have a free carry-on. But they ask me to pay $75 when we are nearly boarding. It was tricky during check out that make you mistake that you can have a carry-on beside your personal item. Also they ask $75 in the airport instead of $35 during checkout. So the whole process is designed to make you this mistake

Westjet is one of the worst airlines in the world. 100% guaranteed to have flight delays and flight cancellations. Will never book again with Westjet.

Plane should have entertainment, instead of people paying to use wifi

Everything you need to know for your flight from Louisville to Ontario

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