C$ 120 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 18/3. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

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

Best Ontario Flight Deals from Boston

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Toronto
TorontodirectC$ 290
Ottawa
OttawadirectC$ 314
Thunder Bay
Thunder Bay1 stopC$ 613
Windsor
Windsor2 stopsC$ 686
Toronto
TorontodirectC$ 290
Ottawa
OttawadirectC$ 314
Thunder Bay
Thunder Bay1 stopC$ 613
Windsor
Windsor2 stopsC$ 686

Cheap Flights from Boston to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston 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 Boston to Ontario

Tue, 31 Mar - Wed, 1 Apr
Porter Airlines Logo
11:50 a.m. - 1:42 p.m.
BOS
-
YTZ
1h 52mdirect
Porter Airlines Logo
7:35 p.m. - 9:10 p.m.
YTZ
-
BOS
1h 35mdirect
C$ 290Porter Airlines
Wed, 11 Mar - Sat, 14 Mar
Porter Airlines Logo
11:50 a.m. - 1:42 p.m.
BOS
-
YTZ
1h 52mdirect
Porter Airlines Logo
1:10 p.m. - 2:45 p.m.
YTZ
-
BOS
1h 35mdirect
C$ 291Porter Airlines
Tue, 17 Mar - Wed, 25 Mar
Porter Airlines Logo
9:00 a.m. - 10:52 a.m.
BOS
-
YTZ
1h 52mdirect
Porter Airlines Logo
7:35 p.m. - 9:10 p.m.
YTZ
-
BOS
1h 35mdirect
C$ 292Porter Airlines
Sat, 11 Apr - Sat, 18 Apr
Multiple Airlines Logo
3:30 p.m. - 8:10 p.m.
BOS
-
YYZ
4h 40m
1 stop
Multiple Airlines Logo
6:15 a.m. - 9:49 a.m.
YYZ
-
BOS
3h 34m
1 stop
C$ 294Multiple Airlines
Sun, 26 Apr - Thu, 30 Apr
Porter Airlines Logo
7:00 a.m. - 8:54 a.m.
BOS
-
YTZ
1h 54mdirect
Porter Airlines Logo
8:00 a.m. - 9:35 a.m.
YTZ
-
BOS
1h 35mdirect
C$ 294Porter Airlines
Thu, 26 Mar - Sun, 29 Mar
Multiple Airlines Logo
3:30 p.m. - 9:40 p.m.
BOS
-
YYZ
6h 10m
1 stop
Multiple Airlines Logo
6:15 a.m. - 9:52 a.m.
YYZ
-
BOS
3h 37m
1 stop
C$ 296Multiple Airlines
Thu, 26 Mar - Mon, 30 Mar
Air Canada Logo
6:15 a.m. - 8:17 a.m.
BOS
-
YYZ
2h 02mdirect
Air Canada Logo
8:55 p.m. - 10:39 p.m.
YYZ
-
BOS
1h 44mdirect
C$ 299Air Canada
Thu, 26 Mar - Sun, 29 Mar
Air Canada Logo
6:15 a.m. - 8:17 a.m.
BOS
-
YYZ
2h 02mdirect
Air Canada Logo
6:15 a.m. - 9:52 a.m.
YYZ
-
BOS
3h 37m
1 stop
C$ 300Air Canada
Wed, 29 Apr - Sun, 3 May
WestJet Logo
6:30 p.m. - 5:15 p.m.
BOS
-
YHM
22h 45m
1 stop
WestJet Logo
6:10 p.m. - 5:40 p.m.
YHM
-
BOS
23h 30m
1 stop
C$ 508WestJet
Wed, 29 Apr - Sun, 3 May
WestJet Logo
6:30 p.m. - 5:15 p.m.
BOS
-
YHM
22h 45m
1 stop
WestJet Logo
6:10 p.m. - 5:40 p.m.
YHM
-
BOS
23h 30m
1 stop
C$ 563WestJet
Booking Insights

KAYAK's insights & trends for Boston to Ontario flights

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

What is the cheapest Boston to Ontario flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ontario from Boston found in the last 72 hours was to Toronto, at C$ 141 round-trip. The most popular route is from Boston (BOS) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 141.

Can I save money by flying with a layover from Boston to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at C$ 353 on average.

What is the cheapest month to fly from Boston to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Ontario is October, when tickets cost C$ 373 (return) on average. On the other hand, the most expensive months are February and November, when the average cost of round-trip tickets is C$ 498 and C$ 489 respectively.

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

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

If you are looking for a flight deal from Boston to Ontario, look for departures on Sundays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Ontario, Friday is the cheapest day to fly and Wednesday is the most expensive.

How far in advance should I book a flight from Boston to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Boston to Ontario, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flightC$ 120
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (4% more expensive on average)
Flight from Boston to Montreal

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 from Boston 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 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 from Boston 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 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 from Boston 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 morning, when round-trip flights cost C$ 415 on average. Morning departures are around 26% cheaper than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the evening, which is peak travel time and where the average cost of a ticket is C$ 562.

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$ 242 one-way - C$ 364 round-trip; Toronto C$ 169 one-way - C$ 145 round-trip

Reviews of the top 3 airlines flying from Boston to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Boston 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 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
Porter AirlinesOverall score based on 420 reviews
8.2Boarding
7.6Food
8.0Comfort
8.6Crew
7.0Entertainment
Airline reviews

The flight was a little delayed but check in was easy and boarding was quick. Luggage was quickly available and everything worked great.

10.0 ExcellentIngelwood, Feb 2026
CUN - YOW
Read more Porter Airlines reviews

The flight was a little delayed but check in was easy and boarding was quick. Luggage was quickly available and everything worked great.

The Flight took off 2hrs late because there was no pilot showing up when the flight was ready to board.. Though the cabin crew was present and had prepared the plane, the FO turned around after 15 min and went away. A crew to fly the plane finally arrived over an hour later and we were able to board 1h30 min later than planned time... until everything was loaded, we left 2h late from the gate. This was a small plane, so don't expect any Entertainment... Wi-Fi access on board would work, but took an awful amount of time to figure out and get it work (I'm an IT person). Flying as VIPorter customer, I was expecting at least some warm meal, but everything served was just cold.. except the coffee maybe. Even in so-called VIPorter seats, space is cramped and trays are so tiny, you can barely setup your food. Flight caught up during the coast-to-coast crossing and was able to recoup about 45 min from the delay.. still arrived very late in Vancouver and had to wait a long time to get our registered bags. Let's see how the return flight will be in a few days..

The flight booking code given by Kayak was not the correct one used by the airline. I had to call to get the correct one. It was never sent to me. Totally unacceptable!

Due to a known technical error that Porter has not fixed in over a year, I was unable to check in the children on my reservation online and had to do it at the airport. Upon check in, there were no seats together, which was an issue as we had young children. The gate agent did manage to seat us together by moving other passengers, which was appreciated, but the other passengers were never informed, leading to confusion and delay upon boarding. The flight was over an hour late; no explanation or apology was ever issued. The bags on Porter take a long time to arrive--over half an hour at Hamilton on my inbound flight, and not much better on my return to Edmonton.

Much roomer than air Canada! Great flight for the price. No complaints

On my e-boarding pass it shows free wifi, yet the plane I was on didn’t have wifi. Please remove false advertising from your website and boarding passes

As a first time flyer with Porter I was happy with the service and comfort of the airline.

3.5 hr delay for a 1 hr work flight. No information as to why the delay until 20 mins before boarding.

Other than wifi no on board entertainment. Will use them again, roomier seats than other airlines and snacks and beverages, better than average

I like it, but the food isn't good. They need to offer more simple things. This bowls that have so many things your don't know what your are eating. The milenials like it, no the rest. And last but not least, they allowed somebody have a huge dog, vey agressive and fidgety in the flight. That's horrible. No animals should be allowed inside the airplane, what about allergies, etc

Entertainment kept turning itself off. Gave up on watching a movie.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

Not United Airlines' fault. It's ORL airport's fault.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Flight was canceled due to mechanical issues. After a considerable wait in the queue, Air Canada customer service was very helpful to get us on another flight. I am disappointed to report our rescheduled flight is for three days from now. Three days of extra expenses and inconvenience is unacceptable.

The last 3 hours it was freezing cold in row 56. Multiple people had their winter coats on and were utilizing the blankets provided by the airline. I also did not have easy access to figure out how to book my food allergy and advance for my meals. Most of everything I received was something I couldn't eat. This needs to be made more accessible. Also, I'm 5'10 which is the average height of the American male. I flew from Philadelphia to Toronto and then to Tokyo and the seats were absolutely unbearable. For that long of a flight it is impossible to get comfortable when doing anything. Flights need to have more space and stop prioritizing costs over people.

Was delayed at every point/ connection. Luggages missing for 5days. Had no medications for diabetes and high B/p. when bags where finally delivered on the 30th, the insulin and ozempic were no longer patent, as the ice pack had since dissolved and the authenticity of the med is now questionable, since they must be refrigerated. Please have them refund my bag fees. I should sue them for all the inconveniences caused to me.

The plane was delayed substantially due to a mechanical problem, that being said, the airline was very fair with providing a meal coupon for us. I would rather arrive late on a mechanically sound plane than the alternative. The food served in the plane was just awful, however and I recommend a new catering company.

I waiting for 2 hrs to retrieve my luggage. Didn't get home till 3am.

The flight left late and I didn’t get a glass of bubbly upon boarding (which I’m used to when booking business class on other flights), but otherwise it was a pleasant flight with lovely, helpful crew members and I enjoyed my meal.

everything was fine. but paying for 1 piece of check-in luggage and denying passengers to board with carry-on luggage which by air line's standards does not fit is not acceptable. when one travels for a longer time one needs to have some essentials

Flight was canceled for a reason they knew hours before but did not mention. Next the gate chnage from 37 to 38 at least 10 times. Ridiculous.

It was just fine. I managed to make all my connection too sbut had trouble in Munich with no wheel chair and trouble trying to get help from the airport people to get to the other terminal for my flight. Finally a wonderful lady Amelia, helped me to make my flight connection Timon with zero time to spare.

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

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

Information on your arrival and departure airports