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Cheap flights from Boston to Toronto from C$ 139

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YTO
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from Boston Logan Intl to Toronto are usually found in March or September, booked 75 days in advance, depart on a Monday or Tuesday 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 15 April 2025.

Round-trip from

C$ 296

One-way from

C$ 139

Popular in

November

Cheapest in

March

Average price

C$ 485

Good round-trip deal

C$ 319 or less

Good one-way deal

C$ 154 or less
Porter Airlines
  • Porter Airlines
  • 13/5-21/5
  • Nonstop
  • 3h 30m total
  • Boston to Toronto
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American Airlines
  • American Airlines
  • 29/4
  • 1 total stop
  • 4h 20m total
  • Boston to Toronto
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Highest demand for flights based on searches. 8% potential increase in price (C$ 60 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).
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Average for round-trip flights in April 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

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 15 April 2025.

Tue 13/58:20 p.m.BOS - YTZ
Nonstop1h 49mPorter Airlines
Wed 21/55:55 p.m.YTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 15/4C$ 296
Wed 14/53:50 p.m.BOS - YTZ
1 stop3h 37mMultiple Airlines
Sat 17/53:25 p.m.YTZ - BOS
1 stop6h 32mMultiple Airlines
Deal found 15/4C$ 309
Wed 14/53:49 p.m.BOS - YYZ
1 stop22h 16mMultiple Airlines
Sat 17/58:15 a.m.YYZ - BOS
Nonstop1h 40mMultiple Airlines
Deal found 14/4C$ 314
Sat 14/66:20 p.m.BOS - YYZ
1 stop4h 49mAir Canada
Sun 15/68:15 a.m.YYZ - BOS
Nonstop1h 40mAir Canada
Deal found 14/4C$ 320
Wed 14/53:20 p.m.BOS - YTZ
1 stop6h 15mAir Canada
Sat 17/55:25 p.m.YTZ - BOS
1 stop4h 32mAir Canada
Deal found 14/4C$ 320
Tue 29/412:00 p.m.BOS - YYZ
1 stop4h 35mAmerican Airlines
Tue 6/53:15 p.m.YYZ - BOS
1 stop6h 05mAmerican Airlines
Deal found 15/4C$ 384
Thu 8/58:45 a.m.BOS - YYZ
1 stop3h 43mPorter Airlines
Sun 11/57:35 a.m.YYZ - BOS
2 stops10h 33mPorter Airlines
Deal found 15/4C$ 389
Tue 13/54:35 p.m.BOS - YYZ
Nonstop1h 55mUnited Airlines
Sat 24/58:15 a.m.YYZ - BOS
Nonstop1h 40mUnited Airlines
Deal found 14/4C$ 394
Fri 9/512:00 p.m.BOS - YYZ
1 stop8h 44mDelta
Mon 12/56:15 a.m.YYZ - BOS
1 stop8h 01mDelta
Deal found 15/4C$ 414
Sat 10/57:15 a.m.BOS - YTZ
Nonstop1h 49mAir Transat
Sun 11/57:50 p.m.YTZ - BOS
Nonstop1h 41mAir Transat
Deal found 14/4C$ 416
Thu 1/510:33 p.m.BOS - YHM
3 stops26h 08mMultiple Airlines
Sun 4/56:00 a.m.YHM - BOS
3 stops28h 22mMultiple Airlines
Deal found 15/4C$ 615
Wed 14/56:25 p.m.BOS - YHM
1 stop30h 16mWestJet
Sun 18/56:00 a.m.YHM - BOS
1 stop11h 40mWestJet
Deal found 14/4C$ 786

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 15 April 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

Tue 13/5

8:20 p.m.-10:09 p.m.

Nonstop1h 49m

Toronto Island

Wed 21/5

5:55 p.m.-7:36 p.m.

Nonstop1h 41m

C$ 296

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 14/5

3:50 p.m.-7:27 p.m.

1 stop3h 37m

Toronto Island

Sat 17/5

3:25 p.m.-9:57 p.m.

1 stop6h 32m

C$ 309

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Wed 14/5

3:49 p.m.-2:05 p.m.

1 stop22h 16m

Toronto Pearson Intl

Sat 17/5

8:15 a.m.-9:55 a.m.

Nonstop1h 40m

C$ 314

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 14/6

6:20 p.m.-11:09 p.m.

1 stop4h 49m

Toronto Pearson Intl

Sun 15/6

8:15 a.m.-9:55 a.m.

Nonstop1h 40m

C$ 320

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 14/5

3:20 p.m.-9:35 p.m.

1 stop6h 15m

Toronto Island

Sat 17/5

5:25 p.m.-9:57 p.m.

1 stop4h 32m

C$ 320

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Tue 29/4

12:00 p.m.-4:35 p.m.

1 stop4h 35m

Toronto Pearson Intl

Tue 6/5

3:15 p.m.-9:20 p.m.

1 stop6h 05m

C$ 384

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Tue 13/5

4:35 p.m.-6:30 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Sat 24/5

8:15 a.m.-9:55 a.m.

Nonstop1h 40m

C$ 394

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 8/5

8:45 a.m.-8:11 p.m.

2 stops11h 26m

Toronto Pearson Intl

Sun 11/5

7:00 a.m.-6:08 p.m.

2 stops11h 08m

C$ 399

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Tue 13/5

6:05 a.m.-11:20 a.m.

1 stop5h 15m

Toronto Pearson Intl

Tue 20/5

6:15 a.m.-2:16 p.m.

1 stop8h 01m

C$ 413

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 10/5

7:15 a.m.-9:04 a.m.

Nonstop1h 49m

Toronto Island

Sun 11/5

7:50 p.m.-9:31 p.m.

Nonstop1h 41m

C$ 416

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/4

Showing 1-10 of 29 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 11 April 2025.

To ensure you get the cheapest price possible for a flight from Boston to Toronto, you should look to book at least 75 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, January is the cheapest month in which you can book a flight from Boston to Toronto (average of C$ 167). Flying from Boston to Toronto in July is currently the most expensive (average of C$ 258). 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 15 April 2025.

One of the essential ways to save on airfare from Boston to Toronto is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 20% 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 Tuesday at noon when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 15 April 2025.

The most flights from BOS to YTO are scheduled on a Tuesday (21 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Toronto by month

Plan your trip to Toronto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Toronto ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Toronto when rainfall is around 51.0 mm.

Temperature in Toronto by month

Plan your trip to Toronto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Toronto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 15 April 2025.
Peruse reviews from past customers who have flown with Porter Airlines, Delta and Air Transat from Boston to Toronto to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
281 reviews
Check prices

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Porter Airlines
8.0
Very good
281 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Delta
8.0
Very good
7,918 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Air Transat
7.8
Good
385 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
United Airlines
7.4
Good
8,658 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
281 reviews
Check prices

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

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 14 outbound flights to Toronto per day from 3 airlines. Boston Logan Intl is conveniently located just 4.2 km from Boston’s city centre.

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

    Porter Airlines, at C$ 296, was found to be the cheapest airline from Boston to Toronto.Alternate airlines to your destination round-trip include Air Canada and American Airlines. These flights start at 34% lower than the current average price 3 months from now.

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

    C$ 139 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Porter Airlines and Air Canada, with prices starting from C$ 140 and C$ 145, 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: Air Canada (68%), Jazz (67%), United Airlines( 61%).

  • What are the cheapest flights from Boston to Toronto?

    While on average a flight from Boston to Toronto is generally C$ 369, our data shows the cheapest flight currently is C$ 128. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay C$ 314 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, January is the cheapest month in which you can book a flight from Boston to Toronto (average of C$ 167). Flying from Boston to Toronto in July is currently the most expensive (average of C$ 258). 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 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 209AverageC$ 512FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 260AverageC$ 463FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 346AverageC$ 512FlexibilityNo cancel feeOn-time69%
Search United 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!

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