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Find cheap flights from Boston to Ontario from C$ 74

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Ontario departing on 11/5. 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
0 bags
Mon 3/6
Mon 10/6

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Best Ontario Flight Deals

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

Toronto
Toronto1 stopC$ 290
Ottawa
OttawadirectC$ 409
Windsor
Windsor1 stopC$ 957

Good to know

Low season

January

High season

August

Cheapest flight

C$ 74
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly (13% more expensive on average)
Flight from Boston to Toronto Pearson Airport

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Boston 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 Boston to Ontario.

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

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

  • What is the Hacker Fare option on flights from Boston 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 to Ontario with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston 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 to Ontario from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Ontario

  • Looking for a cheap flight? 25% of our users found tickets from Boston to the following destinations at these prices or less: Toronto C$ 227 one-way - C$ 329 round-trip; Toronto C$ 232 one-way - C$ 484 round-trip
  • Morning departure is around 28% 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

Top 5 airlines serving from Boston to Ontario

 
Need help choosing which airline to fly with from Boston 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.
8.1
WestJet EncoreOverall score based on 54 reviews
7.4Food
8.6Boarding
7.5Entertainment
7.6Comfort
8.7Crew
Airline reviews

Great flight, comfort, and staff. Prefer tv in back of seat but watching on phone will do

10.0 ExcellentDarren, May 2023YYZ - LAX
Read more about WestJet Encore reviews

Great flight, comfort, and staff. Prefer tv in back of seat but watching on phone will do

Pros: "Friendly staff and the support they offered to my mother who needed a wheelchair."
Cons: "I would have liked to have had WestJet internet and entertainment access. It was not offered on our flight from Toronto to Fredericton."
Pros: "The fact that military personnel and retired military personnel and their spouse can check in luggage for free. The check in crew was also very courteous."
Pros: "It ran on time. The pilot landed the plane without a big jolt. We could board and deplane using 2 exits."
Cons: "Seat space"
Pros: "Rotten stuff cancels out the good doesn't it. Be great if you could take some courses from Stephen Covey as you are missing some skills sets in hospitality. And stop being so cheap with the 3rd rate old old movies!"
Cons: "I did not appreciate having the second row to the last on my 2nd plane coming back - I only had a turn around time of 20 minutes to catch my third Westjet flight. When we asked if the plane would wait for us - your crew just laughed in our faces."
Pros: "Great, friendly crew in this scenic trip across to Victoria. Nice new aircraft operating this route."
Pros: "Cheerfulness of WestJet employees."
Cons: "Seat comfort; seats hard. Person next to me average size but still spilled into my seat with “man-spreading” and shoulders."
Pros: "Efficient crew and reasonable seating"
Cons: "Need more legroom or a device to fold passenger legs for the flight duration..."
Pros: "Crew was good. Seats need to be updated and are confining. I appreciated being able to disembark through front and rear door."
Cons: "More space between the seats."
Pros: "the crew was very polite but the flight was too short to have a meal"
Cons: "delayed embarking"

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

They did a fine job. Can't wait to use Delta in the future.

Seats in first class on the E175 recline too far back. I was in 2A, and the man in 1A fully reclined almost the entire flight. It took 6-7 inches of space away from me and made it very difficult to work on my laptop.

Mario was great. Made a night flight on a small aircraft pleasant and memorable.

Crew were exceptional. Plane was quiet and quite empty, so I had a row to sleep across.

The seat could use more support or cushion. I'm in my 50's and have back issues so the seats are a bit hard for longer flights.

The plane was in bad condition. We were taxied for mode than an hour because a light panel had feel off. The bathroom in first class had broken panels as well. Overall poor aircraft maintenance

Airline stewardess service is good. The check-in attendant had a bad attitude and was unprofessional. We did not complete the trip as originally planned. Very dissatisfied☹️ We didn't get on this flight

My only real complaint was how much turbulence there was-and that probably can't be avoided. I felt really sick getting off the plane. But boarding was super easy, the flight attendants were friendly, the bathroom was clean. Everything else about the flight was perfectly fine. Thanks!

Crew was wonderful, very professional and pleasant. On time performance. Excellent flights,smooth. Thank you!

I had back trouble prior to my flight and everyone was great about helping me.

My tv was broken on the flight which is disappointing when you pay for a seat and expect a service

Always delays from Boston to Salt lake but this time was very long. Don’t understand while they board the passengers and then make them sit in the plane

The boarding and flight were ok, but there were several painful issues. The flight was 3:20 in the air and almost four hours door to door, but they only had snack packs on the plane. They really need to have food on longer flights or make it clear to everyone that they won’t have food. They also advertise free WiFi, but it did not work for 90% of this flight. Again, almost four hours door to door. If I had known I was flying spirit for JetBlue prices then I would have planned differently.

Service for food to our seat was a bit slow. Snack choices were just pretzels or baked chips. My seat cushion was not attached. Other than Barbie, video choice were not very good or current.

After we landed, we were held on the plane for 30 minutes. There was no one at the gate once we landed and we forced to sit on a plan that had already over an hour delayed.

almost 4 hour delay as they over booked and had to wait for 8-10 volunteers to agree to travel next day.

Old plane. No outlets for laptop or phone. Seats worn out. Area around seat dirty.

I loved the flight and the crew. It was comfortable and smooth.

The crew was openly hostile and condescending to the customers. They spent the majority of that time in the rear talking and seemed really agitated when people asked questions. I heard five different people told that the information they requested was in the handout or safety brief.

The crew was not great or professional. It seemed like they didn't really want to be there. A true lack of effort for accommodating customers.

Everything was really good but the seats are not very comfortable.

I paid for WiFi, but it (WiFi) was very very slow, will never take again! Impossible open Utube 😤😤😤

I had no legroom, although I paid for extra legroom. I could barely put my bag in front of my feet and under the seat. The Wi-Fi was horrible. In fact the flight attendant said that they had to reboot it and see if it was going to work and never did.

The guy with severe body odor sat next to me. For the whole duration of the flight it was a torture. The airline should have better policy on limiting people with bad body odor to board the flight. Passengers should not be the ones to endure bad odor for the whole duration of the flight. The airline should be e the one to ensure decent air quality for ever passenger.

Overall it was a miserable experience... I will never fly spirit for more than a 3 hour flight or overnight.

The boarding attendant was slightly rude when I asked about checking our stroller. Made me feel like I was bothering her.

My wife and I are both handicapped and at boarding they upgraded us to a seat closer to the front rather than all the way towards the back. Much appreciated.

Not much seat room, but that was unexpected. But the seat headrest was very uncomfortable.

First the good, everyone was friendly and efficient. Flight was smooth and plane was very clean and new. Now the bad, seats have almost no padding on your behind. I was in exit row so I had tons of leg room for a 6' 2" bean pole with long legs. Everything was extra - water, soda, snacks everything besides oxygen. Ya get what you pay for, and my flight was cheap as you could ever want it, so no worries.

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Book cheap flights from Boston to Ontario

Recent round-trip flight deals

18/5Sat
1 stop
7h 27mBOS-YYZ
21/5Tue
2 stops
16h 56mYYZ-BOS
C$ 290
30/5Thu
1 stop
8h 07mBOS-YYZ
4/6Tue
1 stop
17h 17mYYZ-BOS
C$ 291
2/6Sun
directPorter Airlines
1h 53mBOS-YTZ
9/6Sun
1 stopPorter Airlines
4h 45mYTZ-BOS
C$ 354
1/6Sat
directPorter Airlines
1h 53mBOS-YTZ
8/6Sat
1 stopPorter Airlines
4h 00mYTZ-BOS
C$ 355
13/6Thu
directAir Canada
1h 55mBOS-YYZ
25/6Tue
directAir Canada
1h 44mYYZ-BOS
C$ 411
16/6Sun
1 stopAir Canada
4h 36mBOS-YYZ
20/6Thu
directAir Canada
1h 44mYYZ-BOS
C$ 418
17/5Fri
1 stopAmerican Airlines
4h 55mBOS-YYZ
19/5Sun
1 stopAmerican Airlines
4h 09mYYZ-BOS
C$ 478
13/8Tue
1 stopDelta
8h 45mBOS-YYZ
23/8Fri
1 stopDelta
9h 02mYYZ-BOS
C$ 504
13/8Tue
1 stopDelta
8h 45mBOS-YYZ
20/8Tue
1 stopDelta
7h 57mYYZ-BOS
C$ 511
25/5Sat
1 stopAmerican Airlines
7h 49mBOS-YYZ
27/5Mon
1 stopAmerican Airlines
5h 31mYYZ-BOS
C$ 539

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Recent one-way flight deals

11/5Sat
1 stop
7h 27mBOS-YYZ
C$ 74
11/5Sat
1 stop
7h 27mBOS-YYZ
C$ 103
22/5Wed
directPorter Airlines
1h 53mBOS-YTZ
C$ 163
26/5Sun
1 stopPorter Airlines
5h 37mBOS-YYZ
C$ 164
1/6Sat
directAir Canada
1h 55mBOS-YYZ
C$ 172
2/6Sun
1 stopAir Canada
5h 49mBOS-YTZ
C$ 179
23/6Sun
directLufthansa
1h 55mBOS-YYZ
C$ 198
23/6Sun
1 stopLufthansa
5h 02mBOS-YYZ
C$ 252
23/6Sun
1 stopDelta
8h 48mBOS-YYZ
C$ 306
26/6Wed
1 stopDelta
6h 58mBOS-YYZ
C$ 407

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Last minute flights from Boston to Ontario

Last minute flight, train and bus deals

8/5Wed
multi-stop
22h 36mBOS-YYZ
10/5Fri
multi-stop
11h 01mYYZ-BOS
C$ 504
8/5Wed
multi-stop
22h 36mBOS-YYZ
15/5Wed
multi-stop
16h 56mYYZ-BOS
C$ 507
7/5Tue
directPorter Airlines
1h 53mBOS-YTZ
16/5Thu
directPorter Airlines
1h 37mYTZ-BOS
C$ 686
7/5Tue
multi-stopPorter Airlines
4h 04mBOS-YTZ
16/5Thu
multi-stopPorter Airlines
3h 35mYTZ-BOS
C$ 693
9/5Thu
multi-stopAmerican Airlines
8h 40mBOS-YYZ
28/5Tue
multi-stopAmerican Airlines
6h 24mYYZ-BOS
C$ 748
9/5Thu
directAir Canada
1h 55mBOS-YYZ
28/5Tue
directAir Canada
1h 43mYYZ-BOS
C$ 770
9/5Thu
multi-stopAir Canada
4h 26mBOS-YYZ
28/5Tue
directAir Canada
1h 43mYYZ-BOS
C$ 776
8/5Wed
multi-stopDelta
8h 59mBOS-YYZ
15/5Wed
multi-stopDelta
4h 12mYYZ-BOS
C$ 779
9/5Thu
multi-stopAmerican Airlines
8h 40mBOS-YYZ
13/5Mon
multi-stopAmerican Airlines
6h 28mYYZ-BOS
C$ 822
9/5Thu
multi-stopDelta
4h 14mBOS-YYZ
10/5Fri
multi-stopDelta
6h 16mYYZ-BOS
C$ 921

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Boston - Ontario Flights

Departure:

Boston (BOS)United States

Return flight deals:

Ontario - Boston

Cabin classes:

C$ 180