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Cheap flights from Boston to Toronto from C$ 127

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 20/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YTO
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Boston Logan Intl to Toronto are usually found in September or March, booked 60 days in advance, depart on a Thursday or Saturday and return on a Friday

Cheap 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 30 October 2025.

Round-trip from

C$ 297

One-way from

C$ 127

Popular in

November

Cheapest in

September

Average price

C$ 445

Good round-trip deal

C$ 279 or less

Good one-way deal

C$ 200 or less
Air Canada
  • Air Canada
  • 27/11-4/12
  • 1 total stop
  • 7h 06m total
  • Boston to Toronto
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Air Canada
  • Air Canada
  • 20/11
  • 1 total stop
  • 5h 19m total
  • Boston to Toronto
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Highest demand for flights based on searches. 10% potential increase in price (C$ 75 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 15 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Toronto (YTO).
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Price to beat on a one-way flight from Boston Logan Intl to Toronto (YTO).
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Find 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 30 October 2025.

Thu 20/116:15 a.m.BOS - YYZ
Nonstop2h 02mAir Canada
Sat 22/114:20 p.m.YYZ - BOS
Nonstop1h 42mAir Canada
Deal found 30/10C$ 309
Tue 25/113:40 p.m.BOS - YTZ
1 stop6h 23mPorter Airlines
Fri 28/118:00 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 28/10C$ 328
Wed 19/111:25 p.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Sat 22/114:30 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 29/10C$ 332
Tue 2/123:40 p.m.BOS - YTZ
1 stop6h 23mPorter Airlines
Fri 5/122:05 p.m.YTZ - BOS
1 stop4h 06mPorter Airlines
Deal found 29/10C$ 334
Fri 21/113:40 p.m.BOS - YTZ
1 stop6h 23mPorter Airlines
Sun 23/118:00 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 29/10C$ 335
Tue 2/127:00 p.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Thu 11/128:00 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 29/10C$ 338
Fri 5/127:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Sun 7/121:20 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 28/10C$ 339
Thu 20/113:40 p.m.BOS - YTZ
1 stop6h 23mPorter Airlines
Sun 23/118:00 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 28/10C$ 342
Thu 27/116:15 a.m.BOS - YYZ
Nonstop2h 02mAir Canada
Tue 2/128:55 p.m.YYZ - BOS
Nonstop1h 42mAir Canada
Deal found 29/10C$ 349
Tue 25/113:40 p.m.BOS - YTZ
1 stop6h 23mPorter Airlines
Thu 27/111:20 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 28/10C$ 350
Thu 20/115:30 a.m.BOS - YTZ
1 stop4h 25mAir Canada
Sun 23/115:30 p.m.YTZ - BOS
1 stop3h 57mAir Canada
Deal found 28/10C$ 352
Fri 28/117:00 a.m.BOS - YTZ
Nonstop1h 55mPorter Airlines
Fri 5/128:30 p.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 29/10C$ 357

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 30 October 2025.
Use the filters below to find and compare flights from Boston to Toronto that are best for you.

Fly from

Boston

Fly to

Toronto

Route

Depart

Return

Price

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 20/11

5:30 a.m.-9:55 a.m.

1 stop4h 25m

Toronto Island

Sun 23/11

5:30 p.m.-9:27 p.m.

1 stop3h 57m

C$ 352

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 17/11

7:00 p.m.-8:55 p.m.

Nonstop1h 55m

Toronto Island

Thu 20/11

1:20 p.m.-2:55 p.m.

Nonstop1h 35m

C$ 363

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 9/1

6:55 p.m.-8:54 p.m.

Nonstop1h 59m

Toronto Island

Sun 11/1

1:10 p.m.-2:45 p.m.

Nonstop1h 35m

C$ 364

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 19/11

3:40 p.m.-10:03 p.m.

1 stop6h 23m

Toronto Island

Fri 21/11

10:30 a.m.-6:11 p.m.

1 stop7h 41m

C$ 376

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 9/1

3:30 p.m.-7:08 p.m.

1 stop3h 38m

Toronto Island

Sun 11/1

2:05 p.m.-6:10 p.m.

1 stop4h 05m

C$ 384

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Fri 27/2

9:00 a.m.-10:59 a.m.

Nonstop1h 59m

Toronto Island

Mon 2/3

2:05 p.m.-6:10 p.m.

1 stop4h 05m

C$ 406

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 11/12

3:40 p.m.-10:03 p.m.

1 stop6h 23m

Toronto Island

Tue 16/12

11:05 a.m.-12:40 p.m.

Nonstop1h 35m

C$ 406

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sun 7/12

3:40 p.m.-10:03 p.m.

1 stop6h 23m

Toronto Island

Tue 9/12

1:20 p.m.-2:55 p.m.

Nonstop1h 35m

C$ 415

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Tue 2/12

3:40 p.m.-10:03 p.m.

1 stop6h 23m

Toronto Island

Sun 7/12

1:20 p.m.-2:55 p.m.

Nonstop1h 35m

C$ 415

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 24/11

5:30 a.m.-11:55 a.m.

1 stop6h 25m

Toronto Island

Tue 25/11

3:30 p.m.-9:27 p.m.

1 stop5h 57m

C$ 422

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 59 results
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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

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Toronto. Price data was last updated on 24 October 2025.

To ensure you get the cheapest price possible for a flight from Boston to Toronto, you should look to book at least 60 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 month to book a flight from Boston to Toronto?

Currently, April is the cheapest month in which you can book a flight from Boston to Toronto (average of C$ 163). Flying from Boston to Toronto in July is currently the most expensive (average of C$ 321). 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 30 October 2025.

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 40% on airfare.

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 16 December 2024.

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

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

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 30 October 2025.
Get a feel of what it's like to fly with Porter Airlines,Air Transat, andAir 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
384 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
8.0
Very good
384 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.8
Good
469 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,377 reviews
Porter Airlines
8.0
Very good
384 reviews
Check prices

Comfort

8.0

Entertainment

7.0

Crew

8.6

Overall

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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 9 outbound flights to Toronto per day from 3 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 Air Transat fly from Boston to Toronto in about 1h 55m. The time it takes to get you to your destination can typically vary by up to 2h 30m. 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$ 276, was found to be the cheapest airline from Boston to Toronto.Alternate airlines to your destination round-trip include Porter Airlines and United Airlines. These flights start at 38% lower than the current average price 3 months from now.

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

    C$ 148 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 Transat and Air Canada, with prices starting from C$ 151 and C$ 161, 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: Brussels Airlines (79%), ITA Airways (72%), United Airlines( 66%).

  • What are the cheapest flights from Boston to Toronto?

    While on average a flight from Boston to Toronto is generally C$ 653, our data shows the cheapest flight currently is C$ 147. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay C$ 338 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, April is the cheapest month in which you can book a flight from Boston to Toronto (average of C$ 163). Flying from Boston to Toronto in July is currently the most expensive (average of C$ 321). 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

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Top 3 airlines flying from Boston to Toronto

Discover the top 3 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 30 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 276AverageC$ 465FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 307AverageC$ 434FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 347AverageC$ 562FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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

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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.

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