HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Toronto

$111+ Cheap flights from Boston (BOS) to Toronto (YTO)

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 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YTO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Toronto with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Boston Logan Intl to Toronto are usually found in July or March, booked 78 days in advance, depart on a Thursday or Friday and return on a Thursday

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 June 12, 2025.

Round-trip from

$221
(Flightnetwork)

One-way from

$111
(Air Canada)

Popular in

November

Cheapest in

July

Average price

$297

Good round-trip deal

$237 or less

Good one-way deal

$128 or less
From Boston Logan Intl to Toronto (YTO)
Search Deals
One-way flight from Boston Logan Intl to Toronto (YTO)
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 12, 2025.

This Flightnetwork deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/36:00 amBOS - YYZ
Nonstop1h 55mAir Canada
Thu 7/109:45 amYYZ - BOS
Nonstop1h 43mAir Canada
Deal found 6/9$221
This Trip.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/267:15 pmBOS - YTZ
Nonstop1h 49mPorter Airlines
Sat 6/285:55 pmYTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 6/12$221
This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:05 amBOS - YTZ
Nonstop1h 59mMultiple Airlines
Wed 11/198:00 amYTZ - BOS
Nonstop1h 35mMultiple Airlines
Deal found 6/11$224
This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:45 amBOS - YYZ
1 stop4h 30mPorter Airlines
Sun 11/22:00 pmYYZ - BOS
1 stop4h 15mPorter Airlines
Deal found 6/12$230
This Air Canada deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/296:00 amBOS - YTZ
1 stop5h 50mAir Canada
Fri 12/1210:25 amYTZ - BOS
1 stop4h 13mAir Canada
Deal found 6/10$257
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:30 pmBOS - YYZ
1 stop4h 14mDelta
Tue 12/97:59 amYYZ - BOS
1 stop7h 23mDelta
Deal found 6/10$264
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/95:30 amBOS - YYZ
1 stop8h 49mUnited Airlines
Wed 7/95:15 pmYYZ - BOS
1 stop6h 17mUnited Airlines
Deal found 6/9$266
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/258:39 pmBOS - YYZ
1 stop17h 26mMultiple Airlines
Tue 7/299:10 amYYZ - BOS
2 stops9h 18mMultiple Airlines
Deal found 6/10$282
This Trip.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/212:15 pmBOS - YTZ
Nonstop1h 49mAir Transat
Fri 7/47:50 pmYTZ - BOS
Nonstop1h 41mAir Transat
Deal found 6/10$285
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/38:10 amBOS - YYZ
1 stop7h 25mAmerican Airlines
Sat 7/57:15 amYYZ - BOS
1 stop10h 08mAmerican Airlines
Deal found 6/11$289

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 2,558,603 searches. Data last updated June 12, 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 7/3

6:00 am-7:55 am

Nonstop1h 55m

Toronto Pearson Intl

Thu 7/10

9:45 am-11:28 am

Nonstop1h 43m

$221

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 6/26

7:15 pm-9:04 pm

Nonstop1h 49m

Toronto Island

Sat 6/28

5:55 pm-7:36 pm

Nonstop1h 41m

$221

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 11/15

7:05 am-9:04 am

Nonstop1h 59m

Toronto Island

Wed 11/19

8:00 am-9:35 am

Nonstop1h 35m

$224

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 11/29

6:00 am-11:50 am

1 stop5h 50m

Toronto Island

Fri 12/12

10:25 am-2:38 pm

1 stop4h 13m

$257

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Wed 7/9

5:30 am-2:19 pm

1 stop8h 49m

Toronto Pearson Intl

Wed 7/9

5:15 pm-11:32 pm

1 stop6h 17m

$266

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Wed 6/25

12:00 pm-4:14 pm

1 stop4h 14m

Toronto Pearson Intl

Fri 6/27

6:15 am-10:30 am

1 stop4h 15m

$280

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Fri 7/25

8:39 pm-2:05 pm

1 stop17h 26m

Toronto Pearson Intl

Tue 7/29

9:10 am-6:28 pm

2 stops9h 18m

$282

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 7/2

12:15 pm-2:04 pm

Nonstop1h 49m

Toronto Island

Fri 7/4

7:50 pm-9:31 pm

Nonstop1h 41m

$285

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Thu 7/3

9:10 am-3:35 pm

1 stop6h 25m

Toronto Pearson Intl

Sat 7/5

7:35 am-6:53 pm

1 stop11h 18m

$289

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Tue 8/19

3:30 pm-5:51 am

2 stops14h 21m

Toronto Pearson Intl

Tue 8/26

9:10 am-6:28 pm

2 stops9h 18m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 21 results
1
2
3

The best insider tips for Boston to Toronto flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Toronto trip
Airlines
Porter Airlines

Porter offers free snacks and drinks with no middle seats, enhancing short-haul comfort.


PorterReserve includes expedited security and early boarding, ideal for business travelers.

Read more about Porter Airlinesby Daniel Scheffler
Air Canada

Air Canada offers high-speed Wi-Fi on most flights, perfect for staying connected.


Preferred Seats provide extra legroom, ideal for taller passengers on short flights.

Read more about Air Canadaby Jessica Macdonald
Airports
BOS

For a scenic arrival, consider the water taxi service from BOS to Boston’s Long Wharf or Seaport District.

Read more about BOSby Paul Rubio
YYZ

Expect a quick customs process at YYZ, even during peak hours, when arriving from the US.

Read more about YYZby Kaitlyn McInnis
YTZ

YTZ offers free shuttle buses to and from Union Station every 15 minutes, making city access easy and affordable.

Read more about YTZby Kaitlyn McInnis
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on Porter Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Air Canada

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Paul Rubio

Paul Rubio

Expert on BOS

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Kaitlyn McInnis

Kaitlyn McInnis

Expert on YYZ and YTZ

Kaitlyn McInnis

Kaitlyn McInnis

Kaitlyn is a guidebook author and travel writer splitting her time between Atlantic Canada and Istanbul, Türkiye. She has visited over fifty countries and all seven continents, so she is very familiar with many hotels, airports and airlines around the globe. But her favorite type of vacation is sunbathing by the sea with a good book in hand.

Read more

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 June 9, 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Toronto. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $243). Flying from Boston to Toronto in July is currently the most expensive (average of $353). 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 June 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Boston to Toronto at noon. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight in the afternoon.

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 September 8, 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. Sunday evenings 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 June 12, 2025.

The most flights from BOS to YTO are scheduled on a Thursday (20 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 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 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Toronto when rainfall is around 2.0 in.

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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 June 12, 2025.
Read reviews from past customers who have flown Porter Airlines, Delta and Air Transat from Boston to Toronto. 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
288 reviews

Overall

8.0

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Porter Airlines
8.0
Very good
288 reviews
Porter Airlines
8.0
Very good
288 reviews

Overall

8.0

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Delta
8.0
Very good
7,946 reviews
Porter Airlines
8.0
Very good
288 reviews

Overall

8.0

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
Air Transat
7.8
Good
396 reviews
Porter Airlines
8.0
Very good
288 reviews

Overall

8.0

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
United Airlines
7.4
Good
8,790 reviews
Porter Airlines
8.0
Very good
288 reviews

Overall

8.0

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
288 reviews

Overall

8.0

Food

7.6

Boarding

8.2

Comfort

8.1

Entertainment

7.0

Crew

8.7

Reviews

1 / 20
4.0
Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!

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 12 outbound flights to Toronto per day from 5 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

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

    Air Canada, at $221, was found to be the cheapest airline from Boston to Toronto.Alternate airlines to your destination round-trip include Porter Airlines and United Airlines. Air Canada is priced at 30% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $111. Users have also found prices from $111 and $113 on Porter Airlines and Air Transat, respectively.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to Toronto on time: Brussels Airlines (85%), Jazz (84%), Air Canada (77%).

  • What are the cheapest flights from Boston to Toronto?

    While on average a flight from Boston to Toronto is generally $1,574, our data shows the cheapest flight currently is $112. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay $216 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 $243). Flying from Boston to Toronto in July is currently the most expensive (average of $353). 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 5 airlines flying from Boston to Toronto

Discover the top 5 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$127Average$290FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$137Average$365FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$165Average$360FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$241Average$377FlexibilityNo cancel feeOn-time69%
Air TransatCheapest$263Average$318FlexibilityNo cancel feeOn-time50%

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.