C$ 105 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 1/10. 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

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
Toronto1 stopC$ 252
Ottawa
OttawadirectC$ 412
Windsor
Windsor1 stopC$ 874
Toronto
Toronto1 stopC$ 252
Ottawa
OttawadirectC$ 412
Windsor
Windsor1 stopC$ 874

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

Thu, 2 Oct - Sun, 5 Oct
Air Canada Logo
10:20 a.m. - 4:54 p.m.BOS-YYZ
6h 34m1 stop
Air Canada Logo
9:45 a.m. - 11:29 a.m.YYZ-BOS
1h 44mdirect
C$ 252Air Canada
Find Deal
Thu, 2 Oct - Sun, 5 Oct
Air Canada Logo
10:20 a.m. - 4:54 p.m.BOS-YYZ
6h 34m1 stop
Air Canada Logo
8:55 p.m. - 10:39 p.m.YYZ-BOS
1h 44mdirect
C$ 256Air Canada
Find Deal
Thu, 2 Oct - Sun, 5 Oct
Air Canada Logo
12:15 p.m. - 2:03 p.m.BOS-YYZ
1h 48mdirect
Air Canada Logo
9:45 a.m. - 11:29 a.m.YYZ-BOS
1h 44mdirect
C$ 258Air Canada
Find Deal
Thu, 2 Oct - Sun, 5 Oct
 Logo
10:20 a.m. - 2:45 p.m.BOS-YTZ
4h 25m1 stop
 Logo
12:00 p.m. - 5:58 p.m.YTZ-BOS
5h 58m1 stop
C$ 274
Find Deal
Thu, 2 Oct - Sun, 5 Oct
 Logo
10:20 a.m. - 2:45 p.m.BOS-YTZ
4h 25m1 stop
 Logo
12:00 p.m. - 5:58 p.m.YTZ-BOS
5h 58m1 stop
C$ 276
Find Deal
Fri, 5 Sep - Tue, 9 Sep
Porter Airlines Logo
3:30 p.m. - 7:03 p.m.BOS-YTZ
3h 33m1 stop
Porter Airlines Logo
9:50 a.m. - 11:31 a.m.YTZ-BOS
1h 41mdirect
C$ 292Porter Airlines
Find Deal
Sat, 6 Sep - Wed, 24 Sep
Porter Airlines Logo
6:45 p.m. - 8:34 p.m.BOS-YTZ
1h 49mdirect
Porter Airlines Logo
1:00 p.m. - 2:41 p.m.YTZ-BOS
1h 41mdirect
C$ 294Porter Airlines
Find Deal
Sat, 27 Sep - Sat, 4 Oct
United Airlines Logo
4:25 p.m. - 11:58 p.m.BOS-YYZ
7h 33m1 stop
United Airlines Logo
7:30 a.m. - 1:25 p.m.YYZ-BOS
5h 55m1 stop
C$ 358United Airlines
Find Deal
Fri, 17 Oct - Fri, 24 Oct
WestJet Logo
6:30 p.m. - 12:40 a.m.BOS-YHM
30h 10m1 stop
WestJet Logo
6:00 a.m. - 5:40 p.m.YHM-BOS
11h 40m1 stop
C$ 445WestJet
Find Deal
Fri, 17 Oct - Mon, 20 Oct
WestJet Logo
6:30 p.m. - 12:40 a.m.BOS-YOW
30h 10m1 stop
WestJet Logo
6:00 a.m. - 5:40 p.m.YOW-BOS
11h 40m1 stop
C$ 459WestJet
Find Deal
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.

How much is a round-trip flight from Boston to Region of Ontario?

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$ 170 round-trip. The most popular route is from Boston (BOS) to Toronto Island Airport (YTZ), and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 207.

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$ 481 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 March, when tickets cost C$ 393 (return) on average. On the other hand, the most expensive months are November and December, when the average cost of round-trip tickets is C$ 558 and C$ 499 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 Thursdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Ontario, Friday is the cheapest day to fly and Monday 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 3 weeks before departure, which saves you about 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flightC$ 105
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly (37% 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 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$ 331 on average. Morning departures are around 13% cheaper than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the afternoon, which is peak travel time and where the average cost of a ticket is C$ 388.

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: Ottawa C$ 181 one-way - C$ 525 round-trip; Toronto C$ 154 one-way - C$ 344 round-trip; Montreal C$ 225 one-way - C$ 511 round-trip

Reviews of the top 4 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 332 reviews
7.0Entertainment
8.2Boarding
8.7Crew
8.0Comfort
7.6Food
Airline reviews

There was a 5 hour delay. Missed connection and now an almost 21 hour lay over!

2.0 MediocreKirsten, Aug 2025BOS - YOW
Read more Porter Airlines reviews

There was a 5 hour delay. Missed connection and now an almost 21 hour lay over!

The flight was fine see earlier note for the problem

Three hours on the tarmac with almost zero communication from the cockpit. Not when offered a water in the interim. In my 67 years of flying all over the world the worst experience ever. The plane was half empty, however had to pay for seats to sit next to my girlfriend. Extra to take a carry on. I would never fly Porter again even for free.

Everything was good except the fact you charge more for a carry on bag vs a check in bag and to top it off in US$ that was not impressive

Our flight was cancelled at the last minute for maintenance reasons and we were rebooked on a late flight when we purposefully booked our flight to be home early due to work.

Seemed like an old plane. Very noisy. The seat cushions were so old that the metal bracing of the seats were poking through. There was plenty of leg room though.

Flight was delayed over 2 hours, then landed at a different airport!

The whole experience from check in to deboarding was fantastic.

Just an evening before they canceled my ticket and offered me ticket costing 3 x times more than. I will not fall prey to these scams,Will never book through kayak now. Such a bad experience.

Great! Personable crew. I love that they pour complimentary beer and wine.

It’s ok just the boarding point is far too far

Check in slow even though completed online check in, there was no bag drop available so had to query for 90mins as only 2 staff on desks.

Flying to a far away destination is a miracle in itself, so please take these with a grain of salt. The seats are a bit tired, and need a freshen up. The entertainment could be a bit newer, especially with all services available now. The food really is where we need help. But again, flying is a privilege, so all is good.

Not so much porter it's your site! Not good

They are a sister company with Air Transat and the two companies do not work well together. If you have any issues the two companies will blame each other and you will miss your flights. The help line does not help

Never book through a third party. Book through Air transats website. Terrible process to get help and many issues happen with them and sister companies because half the flights you book with them aren’t even through air transat.

The plane was pretty full, and we dis not have any includes meal for our 4h30 flight? And on-board entertainment wasn't available, there was no TV or plugging to charger your device on the plane. They told us to download an app if we wanted to watch movies but it never connected, that was a disappointment, the r we st was very good though and the crew were really nice!

Seats were very tight especially for first leg of trip.

Not necessarily a Transat issue but it took 2 hours to go through immigration. Tried to reach out to Transat for resolution but was unable to reach an agent.

The flight was excellent, once it started, however we were delayed two hours when the first plane’s engines wouldn’t start. They found another identical plane and transferred us and our luggage in under two hours and made up almost an hour in the air.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

The service was good, the food could have been better.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Flight was actually on Air Canada. The flight itself was fine. Nothing special. Food was pretty pathetic except for cookies. They offered plenty of food and drinks but just wasn't very good. Even for airline food.

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Delay and keep changing gates. I have to run around from B to C then to E.

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

My suitcase was completed destroyed. The top part is broken and unusable now.

Refreshments and Air Hostess was good. Issues with customs in Toronto caused flight to depart and left me behind twice. Vouchers for delayed flight needs to increase.

Long wait to check in at the priority counter in Toronto

I had no communication, receipt etc from Air Canada until hours before flight

I booked my flight months ago, and checked-in online about 12 hours before the flight. I received an email confirmation of check-in. I had no subsequent communication from Air Canada after my original booking. After arriving at the airport three hours before the flight, as instructed, I waited 90 minutes for an agent to appear to check my bag. I was informed that my flight had been canceled many weeks before, and that flight was no longer being run!! I showed a copy of my check-in confirmation, but no explanation could be found. I was placed on standby for the next flight and the connection. Luckily, those flights were not full and I arrived at my destination. I double checked my email, but I received no update about the flight from Air Canada until the day of the flight.

I had a good experience. I liked being informed about the status of my luggage

I was forcefully re-routed to another destination and was delayed a total of 8hours. I have still not received my bags, no one is taking responsibility. The agents at the airport lied to me that I will get to my destination same time as my previous flight where I was forcefully re-routed from.

Flight was delayed by 1.5hrs. Once inside, people had their small handbags on the storage. The crew (male guy) was not helpful in making some space in the storage. Instead, he asked few bags to be checked-in and it was not a great experience. No attempt to help but just followed the things with a straight face. People had their literally small bags and he wouldnt not move from one storage to another even if there was space and would not let us do i as well. Once flight was on, they ran out of Orange juice, really running out of orange juice when the temp were 32.degrees outside. didnt made the sense. Onasking for a extra snack, he made a face as if he was giving me out of his pocket. if the flight was delayed, there could have an attempt to provide something extra incase people did asked.

Our flight was canceled at the last minute. Someone on the flight said the exact same thing happened to her the day before. I will say they helped us book a flight on another airline so that we could still make our vacation with little delay.

We had a very long delay. First the inbound flight took a while, then maintenance, they “fixed it” to then do boarding and leave the gate, and waste a lot of time to have to go back to the gate and eventually deplane. Had to wait for a new aircraft, wait for a gate, and do the whole thing again. Instead of leaving at 9:50am we left until past 1. I could’ve not woken up at 5am, or spend some more time with my family if they gave more grace period of time between flights to give some time in case of any issues. But they have to make all and every dollar possible

Abandoned me in hallway in a wheelchair… which I asked for because I sprained my back. After waiting in the hallway, I decided to walk the rest of the way since someone respecting me up.. My experience with the united was totally the opposite. Wheelchair access, propped swift and save me a lot of grief. Air Canada totally disorganized.

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

Information on your arrival and departure airports

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