Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Boston to Toronto from C$ 133

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YTO
6 Sep — 13 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Boston Logan Intl to Toronto are usually found in October or July, booked 55 days in advance, depart on a Sunday or Saturday and return on a Thursday

Cheap flight deals from Boston to Toronto

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Toronto
Explore the most affordable flight options available from Boston to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 August 2026.

Wed 16/94:30 p.m. -
Nonstop1h 45m
Sun 20/93:45 p.m. -
Nonstop1h 40m
Deal found 2/8C$ 275
Tue 15/94:30 p.m. -
Nonstop1h 45m
Sun 20/93:45 p.m. -
Nonstop1h 40m
Deal found 2/8C$ 277
Thu 27/83:55 p.m. -
1 stop6h 09m
Fri 28/85:10 p.m. -
Nonstop1h 40m
Deal found 4/8C$ 280
Wed 26/87:10 a.m. -
Nonstop1h 47m
Sat 29/88:50 a.m. -
Nonstop1h 40m
Deal found 1/8C$ 280
Thu 27/83:55 p.m. -
1 stop6h 09m
Sun 30/87:25 a.m. -
Nonstop1h 40m
Deal found 4/8C$ 282
Tue 15/92:20 p.m. -
1 stop4h 35m
Wed 16/93:45 p.m. -
Nonstop1h 40m
Deal found 2/8C$ 282
Sun 23/87:10 a.m. -
Nonstop1h 47m
Thu 27/81:35 p.m. -
Nonstop1h 40m
Deal found 5/8C$ 283
Fri 28/83:55 p.m. -
1 stop6h 09m
Sun 30/85:10 p.m. -
Nonstop1h 40m
Deal found 6/8C$ 284
Thu 17/94:30 p.m. -
Nonstop1h 45m
Sat 19/98:50 a.m. -
Nonstop1h 40m
Deal found 2/8C$ 284
Thu 27/83:55 p.m. -
1 stop6h 09m
Mon 31/87:25 a.m. -
Nonstop1h 40m
Deal found 4/8C$ 286
Wed 2/97:10 a.m. -
Nonstop1h 47m
Sat 5/93:35 p.m. -
Nonstop1h 40m
Deal found 2/8C$ 286
Fri 28/810:05 a.m. -
Nonstop1h 55m
Mon 31/87:25 a.m. -
Nonstop1h 40m
Deal found 5/8C$ 287

Find flight deals from Boston to Toronto

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Toronto (YTO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 August 2026.

Round-trip from

C$ 275

One-way from

C$ 133

Popular in

April

Cheapest in

October

Average price

C$ 478

Good round-trip deal

C$ 301 or less

Good one-way deal

C$ 136 or less
Porter Airlines
  • Porter Airlines
  • 16/9-20/9
  • Nonstop
  • 3h 25m total
  • Boston to Toronto
Search Deals
Porter Airlines
  • Porter Airlines
  • 25/8
  • 1 total stop
  • 6h 09m total
  • Boston to Toronto
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Toronto (YTO).
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Toronto (YTO).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Toronto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 7 August 2026.
Use the filters below to find and compare flights from Boston to Toronto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonToronto

BOS Boston Logan Intl - YYZ Toronto Pearson Intl

BOSYYZ

Boston Logan Intl

Sat 29/8

7:15 p.m.-9:10 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Sun 6/9

8:10 a.m.-9:53 a.m.

Nonstop1h 43m

C$ 291

BostonToronto

BOS Boston Logan Intl - YYZ Toronto Pearson Intl

BOSYYZ

Boston Logan Intl

Thu 3/9

5:45 a.m.-10:35 a.m.

1 stop4h 50m

Toronto Pearson Intl

Sun 6/9

2:20 p.m.-4:03 p.m.

Nonstop1h 43m

C$ 304

BostonToronto

BOS Boston Logan Intl - YTZ Toronto Island

BOSYTZ

Boston Logan Intl

Tue 15/9

7:00 a.m.-8:47 a.m.

Nonstop1h 47m

Toronto Island

Tue 15/9

11:55 a.m.-3:50 p.m.

1 stop3h 55m

C$ 311

BostonToronto

BOS Boston Logan Intl - YTZ Toronto Island

BOSYTZ

Boston Logan Intl

Mon 19/10

7:00 a.m.-8:47 a.m.

Nonstop1h 47m

Toronto Island

Fri 23/10

3:05 p.m.-4:46 p.m.

Nonstop1h 41m

C$ 322

BostonToronto

BOS Boston Logan Intl - YTZ Toronto Island

BOSYTZ

Boston Logan Intl

Sat 12/9

7:00 a.m.-8:47 a.m.

Nonstop1h 47m

Toronto Island

Sat 19/9

11:55 a.m.-3:50 p.m.

1 stop3h 55m

C$ 329

BostonToronto

BOS Boston Logan Intl - YTZ Toronto Island

BOSYTZ

Boston Logan Intl

Tue 18/8

3:55 p.m.-9:48 p.m.

1 stop5h 53m

Toronto Island

Fri 21/8

6:10 p.m.-7:50 p.m.

Nonstop1h 40m

C$ 329
Quickest round-trip

BostonToronto

BOS Boston Logan Intl - YTZ Toronto Island

BOSYTZ

Boston Logan Intl

Thu 17/9

4:30 p.m.-6:15 p.m.

Nonstop1h 45m

Toronto Island

Thu 24/9

7:15 p.m.-8:55 p.m.

Nonstop1h 40m

C$ 336

BostonToronto

BOS Boston Logan Intl - YYZ Toronto Pearson Intl

BOSYYZ

Boston Logan Intl

Sun 6/9

3:40 p.m.-10:04 p.m.

1 stop6h 24m

Toronto Pearson Intl

Mon 21/9

7:25 a.m.-9:05 a.m.

Nonstop1h 40m

C$ 342

BostonToronto

BOS Boston Logan Intl - YTZ Toronto Island

BOSYTZ

Boston Logan Intl

Wed 16/9

2:20 p.m.-8:15 p.m.

1 stop5h 55m

Toronto Island

Mon 21/9

12:00 p.m.-1:40 p.m.

Nonstop1h 40m

C$ 345

BostonToronto

BOS Boston Logan Intl - YTZ Toronto Island

BOSYTZ

Boston Logan Intl

Mon 14/9

2:20 p.m.-6:55 p.m.

1 stop4h 35m

Toronto Island

Sun 20/9

8:50 a.m.-10:30 a.m.

Nonstop1h 40m

C$ 345

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Boston to Toronto

Have a flexible travel schedule? Discover the best time to fly to Toronto from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Toronto

What is the cheapest month to book a flight from Boston to Toronto?

Currently, July is the cheapest month in which you can book a flight from Boston to Toronto (average of C$ 401). Flying from Boston to Toronto in April is currently the most expensive (average of C$ 539). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to YTO?

Find hourly flight availability from Boston to Toronto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 August 2026.

One of the essential ways to save on airfare from Boston to Toronto is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 49% on airfare.

Weekly flight availability from Boston to Toronto

Explore weekly flight availability from Boston to Toronto. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 7 August 2026.

The most flights from BOS to YTO are scheduled on a Wednesday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).

How much does it cost to fly round-trip from Boston to Toronto?

Airfare is below average for this route at the moment.
Boston to Toronto flights typically cost between C$ 356 and C$ 621 in September.
The cheapest round-trip price found within the last 5 days was C$ 275 on Porter Airlines (16 Sep-20 Sep).

How often are flights from Boston to Toronto delayed?

About 23% of weekly flights between Boston and Toronto have experienced delays in the past year, with the average delay time being 127 minutes.

What is the most punctual flight time for Boston to Toronto flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Boston to Toronto flights?

Over the past year, Porter Airlines has had the lowest number of delays on this route, with just 22% of flights being delayed.

How far ahead should I book a flight from Boston to Toronto?

To ensure you get the cheapest price possible for a flight from Boston to Toronto, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from Boston to Toronto?

Use this chart to determine the cheapest time to fly round-trip from Boston to Toronto. Price data was last updated on 1 August 2026.

Travelers seeking maximum savings on their Boston to Toronto flight should consider departing on Sunday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Toronto

Get insights into the airlines that provide service to Toronto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Toronto. Reviews last updated 7 August 2026.
Get a feel of what it's like to fly with Porter Airlines and Air Canada from Boston to Toronto by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
450 reviews
Check prices

Food

7.5

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

6.9

Comfort

8.0

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
450 reviews
Porter Airlines
8.0
Very good
450 reviews
Check prices

Food

7.5

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

6.9

Comfort

8.0

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,433 reviews
Porter Airlines
8.0
Very good
450 reviews
Check prices

Food

7.5

Overall

8.0

Boarding

8.2

Crew

8.6

Entertainment

6.9

Comfort

8.0

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

Related info for your journey

Find useful and relevant information for your journey from Boston to Toronto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Toronto?

    Most people fly from Boston Logan Intl (BOS) if they book a flight from Boston to Toronto. On average, Logan Intl has 30 outbound flights to Toronto per day from 2 airlines. Boston Logan Intl is conveniently located just 4.2 km from Boston’s city centre.

  • How long is the flight from Boston to Toronto?

    Airlines like Air Canada, Porter Airlines, and United Airlines fly from Boston to Toronto in about 1h 47m. The time it takes to get you to your destination can typically vary by up to 5h 31m. There are 695 km between Boston and Toronto. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Boston to Toronto round-trip?

    Air Canada, at C$ 181, was found to be the cheapest airline from Boston to Toronto. An alternate airline flying to your destination would be Porter Airlines. These flights start at 59% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Boston to Toronto one-way?

    C$ 127 is the cheapest one-way deal found within the past few days, from Porter Airlines. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from C$ 131 and C$ 193, respectively.

  • What are the most popular routes from Boston to Toronto?

    When deciding which route to take from Boston to Toronto consider Boston Logan Intl - Toronto Pearson Intl, Boston Logan Intl - Toronto Island or Boston Logan Intl - Hamilton as they are the most popular.

  • What are the most reliable airlines from Boston to Toronto?

    Before booking your flight to Toronto from Boston, check out the most reliable airlines to get you to your destination on time: Jazz (86%), Brussels Airlines (77%), ITA Airways( 70%).

  • What are the cheapest flights from Boston to Toronto?

    While on average a flight from Boston to Toronto is generally C$ 343, our data shows the cheapest flight currently is C$ 122. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay C$ 269 for that flight.

  • Can I find deals for flights from Boston to Toronto that include hotel bookings?

    Yes. In addition to deals on Boston to Toronto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Toronto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Toronto.

  • Can I find deals for business class flights from Boston to Toronto?

    Yes. Cheapflights offers flight deals from Boston to Toronto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Toronto?

    Currently, July is the cheapest month in which you can book a flight from Boston to Toronto (average of C$ 401). Flying from Boston to Toronto in April is currently the most expensive (average of C$ 539). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Boston to Toronto

Discover the top 2 airlines that operate flights from Boston to Toronto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 7 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 181AverageC$ 504FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 276AverageC$ 409FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to Toronto?

Cheapflights helps you search for flights from Boston to Toronto via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Boston to Toronto?

Millions of users choose and trust Cheapflights to book the best flight deals from Boston to Toronto for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Boston to Toronto with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Boston to Toronto, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Boston to Toronto become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.