Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Boston to Toronto from C$ 142

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YTO
31 Mar — 7 Apr1
1 adult

Cheapflights Tip: The best prices from Boston Logan Intl to Toronto are usually found in September or July, booked 56 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 26 March 2025.

Round-trip from

C$ 277

One-way from

C$ 142

Popular in

November

Cheapest in

September

Average price

C$ 442

Good round-trip deal

C$ 329 or less

Good one-way deal

C$ 174 or less
10/4-14/4
  • 10/4-14/4
  • 3 total stops
  • 47h 28m total
  • Boston to Toronto
Search Deals
7/4
  • 7/4
  • 1 total stop
  • 8h 40m total
  • Boston to Toronto
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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

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 26 March 2025.

Thu 10/47:59 p.m.BOS - YYZ
2 stops27h 56mMultiple Airlines
Mon 14/42:55 p.m.YYZ - BOS
1 stop19h 32mMultiple Airlines
Deal found 25/3C$ 277
Thu 10/44:10 p.m.BOS - YTZ
1 stop6h 13mMultiple Airlines
Sun 13/412:25 p.m.YTZ - BOS
1 stop4h 27mMultiple Airlines
Deal found 25/3C$ 295
Thu 10/47:05 a.m.BOS - YTZ
Nonstop1h 59mPorter Airlines
Sun 13/49:05 a.m.YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 25/3C$ 308
Thu 10/46:35 a.m.BOS - YYZ
1 stop5h 04mAir Canada
Sun 13/48:00 a.m.YYZ - BOS
Nonstop1h 41mAir Canada
Deal found 25/3C$ 319
Mon 12/510:20 a.m.BOS - YTZ
1 stop4h 30mAir Canada
Sat 17/53:25 p.m.YTZ - BOS
1 stop6h 39mAir Canada
Deal found 25/3C$ 338
Fri 11/47:05 a.m.BOS - YTZ
Nonstop1h 59mAir Transat
Mon 14/46:40 p.m.YTZ - BOS
Nonstop1h 40mAir Transat
Deal found 24/3C$ 339
Thu 10/46:10 a.m.BOS - YYZ
Nonstop2h 01mUnited Airlines
Sun 13/410:30 a.m.YYZ - BOS
Nonstop1h 41mUnited Airlines
Deal found 25/3C$ 372
Thu 1/58:00 a.m.BOS - YYZ
1 stop5h 04mDelta
Wed 7/56:15 a.m.YYZ - BOS
1 stop8h 59mDelta
Deal found 25/3C$ 399
Thu 22/59:45 a.m.BOS - YYZ
2 stops10h 26mPorter Airlines
Mon 26/57:35 a.m.YYZ - BOS
2 stops10h 33mPorter Airlines
Deal found 24/3C$ 448
Wed 23/46:00 a.m.BOS - YYZ
1 stop4h 20mAmerican Airlines
Mon 26/57:25 a.m.YYZ - BOS
1 stop4h 59mAmerican Airlines
Deal found 24/3C$ 485
Fri 23/59:45 a.m.BOS - YHM
2 stops14h 56mMultiple Airlines
Sun 25/56:00 a.m.YHM - BOS
1 stop11h 40mMultiple Airlines
Deal found 24/3C$ 732
Fri 12/96:25 p.m.BOS - YHM
1 stop30h 15mWestJet
Sun 21/96:00 a.m.YHM - BOS
1 stop11h 40mWestJet
Deal found 25/3C$ 935

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 26 March 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 - YYZ

BOSYYZ

Boston Logan Intl

Thu 10/4

7:59 p.m.-11:55 p.m.

2 stops27h 56m

Toronto Pearson Intl

Mon 14/4

2:55 p.m.-10:27 a.m.

1 stop19h 32m

C$ 277

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 10/4

4:10 p.m.-10:23 p.m.

1 stop6h 13m

Toronto Island

Sun 13/4

12:25 p.m.-4:52 p.m.

1 stop4h 27m

C$ 295

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 10/4

7:05 a.m.-9:04 a.m.

Nonstop1h 59m

Toronto Island

Sun 13/4

1:50 p.m.-6:35 p.m.

1 stop4h 45m

C$ 296

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 10/4

6:35 a.m.-11:39 a.m.

1 stop5h 04m

Toronto Pearson Intl

Sun 13/4

8:00 a.m.-9:41 a.m.

Nonstop1h 41m

C$ 319

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 10/4

7:05 a.m.-9:04 a.m.

Nonstop1h 59m

Toronto Island

Sun 13/4

9:05 a.m.-10:40 a.m.

Nonstop1h 35m

C$ 326

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 12/5

10:20 a.m.-2:50 p.m.

1 stop4h 30m

Toronto Island

Sat 17/5

3:25 p.m.-10:04 p.m.

1 stop6h 39m

C$ 338

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 10/4

6:10 a.m.-8:11 a.m.

Nonstop2h 01m

Toronto Pearson Intl

Sun 13/4

10:30 a.m.-12:11 p.m.

Nonstop1h 41m

C$ 372

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 29/5

11:00 a.m.-5:59 p.m.

1 stop6h 59m

Toronto Pearson Intl

Tue 3/6

6:15 a.m.-11:21 a.m.

1 stop5h 06m

C$ 399

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 22/5

9:45 a.m.-3:28 p.m.

1 stop5h 43m

Toronto Pearson Intl

Fri 23/5

7:35 a.m.-6:08 p.m.

2 stops10h 33m

C$ 435

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 17/4

6:00 a.m.-10:20 a.m.

1 stop4h 20m

Toronto Pearson Intl

Fri 18/4

4:15 p.m.-10:45 p.m.

1 stop6h 30m

C$ 501

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/3

Showing 1-10 of 27 results
1
2
3

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 21 March 2025.

To ensure you get the cheapest price possible for a flight from Boston to Toronto, you should look to book at least 50 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 26 March 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 19% 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 26 March 2025.

The most flights from BOS to YTO are scheduled on a Monday (20 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 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 26 March 2025.
Peruse reviews from past customers who have flown with Delta, Porter Airlines 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.
Delta
8.0
Very good
7,891 reviews
Check prices

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,891 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Transat
7.8
Good
381 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,608 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,891 reviews
Check prices

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 15 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 Air Transat. These flights start at 37% lower than the current average price 3 months from now.

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

    C$ 146 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 Air Transat, with prices starting from C$ 150 and C$ 153, 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 (69%), Jazz (68%), United Airlines( 62%).

  • What are the cheapest flights from Boston to Toronto?

    While on average a flight from Boston to Toronto is generally C$ 349, our data shows the cheapest flight currently is C$ 143. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay C$ 340 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

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 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 26 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 267AverageC$ 466FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 272AverageC$ 540FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 356AverageC$ 526FlexibilityNo 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!

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.