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C$ 116 Find cheap flights from Boston 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 Boston to Ontario departing on 25/9. 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

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Best Ontario Flight Deals

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

Toronto
TorontodirectC$ 307
Ottawa
OttawadirectC$ 359
Windsor
Windsor2 stopsC$ 633

Good to know

Low season

January

High season

November

Cheapest flight

C$ 116
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly (18% 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$ 173 one-way - C$ 334 round-trip; Montreal C$ 193 one-way - C$ 417 round-trip; Toronto C$ 183 one-way - C$ 371 round-trip
  • Morning departure is around 1% 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 4 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.
8.0
DeltaOverall score based on 9079 reviews
8.5Crew
8.2Boarding
7.4Food
8.0Entertainment
7.9Comfort
Airline reviews

6 hour delay including one after we were boarded. Horrible experience.

2.0 MediocreAmber, Sep 2024AUS - SLC
Read more Delta reviews

6 hour delay including one after we were boarded. Horrible experience.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

It was NOT pleasant. Started from checking our luggage to the last time getting off the plane. The crew was not friendly, the food was horrible and the seats were too close to each other that I got a bruise on my knee.

Nothing unusual. It was fine. I hate having to pay extra for my seat.

Everything was Okay. I was disappointed our luggage didn’t arrive with us and came in a flight 7 hours later. Representative said the will be delivered to the hotel. They have not arrived 24 hours later

We splurged and decided to fly first class. Seats were roomy. But flight crew arrived late to the airport. That delayed our flight. Most of the passengers had to try to make connections flights. I felt bad for them. We checked 4 bags. We got three from the baggage claim carousel. 4th one was lost. Delta online help wasn’t good. Baggage claim staff were sympathetic and nice but we waited around for almost 2 hours and it had t been found. They did find it several hours later and we had to drive back to airport to retrieve it. I won’t be splurging on 1st. Lass again anytime soon. I think we got worse service. I am also not a huge fan of delta but we have family in ATL so we don’t have a ton of choice. What should have been an easy flight turned into a stressful event due to flight crew tardiness and baggage mishandling.

Food TERRIBLE! In First Class- so bad - why was it so much better 20-30 years ago? Comfort-awful-would rather have the old, plush First Class seats than the new hard - too short seats in the new pods -would advise avoiding Delta for any International Flights.

7 hour delay for mechanical reasons Handled badly by crew and delta personnel

In thirty years of traveling, mostly with Delta, this was the worst day ever.

The flight was so late that I had to change connecting flights, turning a five-hour trip into a fourteen-hour nightmare.

In flight on demand didn't work at our seats. Only a single beverage/snack run.

Little snafu at boarding. Staff communicated with gate poorly. Flight attendant was rude making disembark early. This was an older mint class. Needs an overhaul for sure. Food was good. The male flight attendant was really nice.

My encounter with the entertainment services provided on board was moderate; the functionality of the Wi-Fi connection was either sluggish or nonoperational, while the display screens were antiquated and suffered from poor visibility. On the positive side, the cabin exuded a sense of expansiveness, and the crew exhibited amiable and accommodating behavior throughout the journey.

Everything was great except for some reason crew and ground crew could not figure out how to deal with an electric wheelchair and it delayed us 20-30mins. Was pretty frustrating for passengers and the captain.

Like the space, did not like the snack options, there was no power outlet in seats, no entertainment, no flyfi.

Traveling with JetBlue from NYC was convenient as accessing JFK airport was straightforward via the LIRR to the AirTrain. Maneuvering through the terminal was hassle-free, which was a pleasant start to the journey. However, the flight experience itself left much to be desired. The seating arrangement was notably uncomfortable; despite securing a window seat, space felt cramped. This was exacerbated by the middle seat passenger encroaching on my area, which made the flight less enjoyable. Additionally, while the in-flight entertainment system initially seemed like a reprieve, the sound outlet on my seat was inoperable. This issue turned what could have been a manageable three-hour flight into a rather tedious ordeal, as I was unable to use the entertainment system effectively. While JetBlue provided a smooth process in terms of airport logistics, the on-board experience highlighted areas in need of improvement, particularly in terms of comfort and entertainment system maintenance.

The flight crew that we had in our section may have been tired or something. I asked the flight attendant about my son’s screen not working and she spoke down to me like I was stupid. He still had no working screen throughout his flight. The other members had no personality and seemed like they were annoyed when you asked them for something. Definitely took a hit for simple things on my JB experience.

I volunteered to let them put my carry on suitcase in the baggage storage area. But when we landed I was told it was being unloaded IN A DIFFERENT TERMINAL! I had to walk (painful for me) a long way to retrieve my bag and my ride had to move from the waiting area they were in to a totally different one. Not happy.

Over 2 hour delay for a 50-minute flight is unacceptable, especially in normal weather. Very poor communication via app

In-flight staff was very helpful and excellent. However, the flight was delayed by 90 minutes. Also the boarding process should be expedited in case of delayed flights. This will help the passengers trying to make international connections.

Got on quickly and easily. When it turned out the other two seats in my row would be occupied, a nearby flight attendant immediately let me know that I could move one row behind me since it was an empty row, I moved into the window seat where I could relax enough to take a little nap. Can’t ask for much more.

We had a 40 mins delay, but the pilot was good about keeping up informed. No food/snacks or drinks when u in the air-they have to be purchased. They charge for every single thing .

I’m not a fan of Spirit Airlines from a not-so-good experience the last time & I swore I would not fly this airline again- bc they charge for EVERYTHING. I only flew Spirit this time bc it wasn’t my choice. I decided to use a “Mystery Ticket” bc of the great price, not knowing it would choose this airline! I found out on this trip how they pick a random seat with a “sticker” for a prize-are we in first grade? just doesn’t seem right & now the first 3 or 4 rows get special treatment-we all paid for our tickets, not just them.

particularly nothing to like plane just turned to be a hmm flying bus, yet in buses from another country at least drink and snack are free ... and seat could be just a bit more ..adjustable? ok ok i know i am asking for too much but ..dreaming is not forbidden yet

Fantastic !!! Seamless boarding. Meticulously clean. We left and arrived early.

The flight was delayed, and we waited for more than an hour on the plane.

Comfortable and plenty of. Having to buy water and coffee, though is ridiculous!

Better overall experience from my first flight with Spirit several years ago. Efficient boarding (albeit I arrived after all rows were called) and flight actually left earlier than planned. I am still baffled by being charged for everything, even a non-alcoholic beverage. And there is definitely less seat room which makes a flight that’s more than 2 hours really uncomfortable.

Check in was made easy with the ladies at the luggage. they were fast and so kind. You should pay them more.

This was the best spirit airlines fight I have ever had. I take spirit up to 3 or more times a year and I am ready to be the Jared of spirit. 🤪 Best flight ever. Everyone was great. I hope my return flight is the same. When you're traveling with a 9 month old you need a different type of care and accommodation. I didn't ask the staff for anything but I didn't have any added stress.

The seats were dirty with crumbs and trash , looked it had not been cleaned up from a previous flight

Nothing about the flight was good. The crew was rude and unwilling to assist would never recommend this airline to anyone and for sure will not fly it again

The plane was very clean, the flight attendants were chipper and accommodating. It was roomy

There was extremely long wait times to check in my bags and pass through TSA. I almost missed my flights on several occasions.

I didn’t have enough time to catch my connecting flight and had to use a different Airline. I will be requesting a refund.

There were a lot of issues at the gate in Atlanta — which caused delays in boarding and getting to our destination. The aircraft and crew were excellent.

It was fine. The flight was delayed for 3 hours. I had things scheduled in Detroit, and I let a lot of people down by not being there on time.

First time experience and though you'll pay for *everything* meaning bags, water/snacks, even a question with a service agent - - all in all, not a bad experience whatsoever.

Long lines, rude staff, everything that's offered you have to pay for.

Among the worst flights I’ve taken. Never again. Staff was horrible across the entire Frontier workforce. Flight attendants were legitimately yelling at and arguing with each other while on board - toxic environment (really guys? at work and in front of customers no less?). Frontier intentionally assigned my partner and I (who booked together) to opposite ends of the plane despite plenty of seats together - straight up predatory practices to take people’s money. Seats are legit the absolute worst. Not even free coffee. Absolute garbage airline with wild hidden fees and the worst staff in the business. They will for sure have a deadly accident soon. Never again, not for any where not for any price.

Book cheap flights from Boston to Ontario

Recent round-trip flight deals

18/10Fri
directPorter Airlines
1h 53mBOS-YTZ
21/10Mon
1 stopPorter Airlines
6h 25mYTZ-BOS
C$ 307
17/10Thu
directPorter Airlines
1h 53mBOS-YTZ
18/10Fri
directPorter Airlines
1h 37mYTZ-BOS
C$ 309
31/10Thu
1 stop
17h 45mBOS-YYZ
4/11Mon
1 stop
16h 10mYYZ-BOS
C$ 313
31/10Thu
1 stop
17h 45mBOS-YYZ
4/11Mon
2 stops
10h 16mYYZ-BOS
C$ 319
18/10Fri
directAir Canada
1h 51mBOS-YYZ
19/10Sat
directAir Canada
1h 44mYYZ-BOS
C$ 345
18/10Fri
directAir Canada
1h 51mBOS-YYZ
27/10Sun
1 stopAir Canada
3h 43mYYZ-BOS
C$ 352
17/10Thu
1 stopUnited Airlines
6h 20mBOS-YUL
17/10Thu
directUnited Airlines
1h 27mYUL-BOS
C$ 404
16/11Sat
1 stopDelta
6h 20mBOS-YYZ
19/11Tue
1 stopDelta
4h 56mYYZ-BOS
C$ 438
1/11Fri
1 stopUnited Airlines
7h 24mBOS-YYZ
4/11Mon
directUnited Airlines
1h 44mYYZ-BOS
C$ 443
20/11Wed
1 stopDelta
4h 12mBOS-YYZ
22/11Fri
1 stopDelta
5h 25mYYZ-BOS
C$ 463

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Recent one-way flight deals

25/9Wed
1 stop
26h 36mBOS-YYZ
C$ 116
25/9Wed
1 stop
26h 36mBOS-YYZ
C$ 117
18/10Fri
1 stopPorter Airlines
5h 53mBOS-YYZ
C$ 133
18/10Fri
directPorter Airlines
1h 53mBOS-YTZ
C$ 133
16/10Wed
directAir Canada
1h 51mBOS-YYZ
C$ 135
17/10Thu
directAir Canada
1h 51mBOS-YYZ
C$ 140
16/11Sat
directAir Transat
1h 59mBOS-YTZ
C$ 169
24/10Thu
directAir Transat
1h 29mBOS-YOW
C$ 184
15/11Fri
1 stopDelta
8h 27mBOS-YYZ
C$ 275
6/11Wed
2 stopsDelta
12h 00mBOS-YUL
C$ 281

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Last minute flights from Boston to Ontario

Last minute flight, train and bus deals

20/9Fri
multi-stop
15h 20mBOS-YYZ
28/9Sat
multi-stop
5h 35mYYZ-BOS
C$ 478
20/9Fri
multi-stop
15h 20mBOS-YYZ
28/9Sat
multi-stop
11h 40mYYZ-BOS
C$ 540
20/9Fri
multi-stop
15h 20mBOS-YYZ
24/9Tue
multi-stop
23h 35mYYZ-BOS
C$ 574
21/9Sat
directPorter Airlines
1h 53mBOS-YTZ
1/10Tue
directPorter Airlines
1h 37mYTZ-BOS
C$ 636
21/9Sat
directPorter Airlines
1h 53mBOS-YTZ
1/10Tue
directPorter Airlines
1h 37mYTZ-BOS
C$ 652
21/9Sat
multi-stopDelta
9h 50mBOS-YYZ
1/10Tue
multi-stopDelta
4h 28mYYZ-BOS
C$ 738
20/9Fri
directAir Canada
1h 51mBOS-YYZ
27/9Fri
directAir Canada
1h 44mYYZ-BOS
C$ 746
21/9Sat
directAir Canada
1h 51mBOS-YYZ
1/10Tue
directAir Canada
1h 44mYYZ-BOS
C$ 748
19/9Thu
multi-stopSun Country Air
23h 06mBOS-YYZ
22/9Sun
multi-stopSun Country Air
25h 40mYYZ-BOS
C$ 836
19/9Thu
multi-stopDelta
8h 40mBOS-YYZ
23/9Mon
multi-stopDelta
7h 25mYYZ-BOS
C$ 859

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

Information on your arrival and departure airports