HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Toronto

$100+ 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 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YTO
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
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 March or July, booked 51 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 septiembre 16, 2025.

Round-trip from

$210
(Air Canada)

One-way from

$100
(SmartFares)

Popular in

November

Cheapest in

March

Average price

$285

Good round-trip deal

$239 or less

Good one-way deal

$130 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. 10% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 septiembre 16, 2025.

This Air Canada deal was found by Cheapflights users on 9/15. 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.
dom. 10/126:00 amBOS - YYZ
Nonstop1h 56mAir Canada
dom. 10/198:15 amYYZ - BOS
Nonstop1h 40mAir Canada
Deal found 9/15$210
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/46:55 pmBOS - YTZ
Nonstop1h 59mPorter Airlines
lun. 12/811:05 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 9/15$210
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/41:25 pmBOS - YTZ
Nonstop1h 59mPorter Airlines
dom. 12/78:00 amYTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 9/15$211
This Mytrip deal was found by Cheapflights users on 9/16. 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.
jue. 10/1610:20 amBOS - YTZ
1 stop4h 25mMultiple Airlines
lun. 10/208:20 pmYTZ - BOS
Nonstop1h 41mMultiple Airlines
Deal found 9/16$212
This Trip.com deal was found by Cheapflights users on 9/15. 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.
jue. 10/168:45 amBOS - YTZ
Nonstop1h 49mPorter Airlines
dom. 10/199:50 amYTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 9/15$213
This Air Canada deal was found by Cheapflights users on 9/15. 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.
jue. 10/96:00 amBOS - YTZ
1 stop5h 45mAir Canada
lun. 10/205:25 pmYTZ - BOS
1 stop4h 00mAir Canada
Deal found 9/15$214
This Air Canada deal was found by Cheapflights users on 9/15. 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.
lun. 10/276:40 pmBOS - YYZ
1 stop5h 24mAir Canada
vie. 10/312:15 pmYYZ - BOS
Nonstop1h 42mAir Canada
Deal found 9/15$215
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/237:15 pmBOS - YTZ
Nonstop1h 49mPorter Airlines
vie. 10/248:20 pmYTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 9/14$215
This Trip.com deal was found by Cheapflights users on 9/14. 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.
mar. 10/147:15 pmBOS - YTZ
Nonstop1h 49mPorter Airlines
mar. 10/211:00 pmYTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 9/14$216
This Trip.com deal was found by Cheapflights users on 9/16. 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.
jue. 10/2310:40 amBOS - YYZ
Nonstop1h 55mAir Canada
vie. 10/244:25 pmYYZ - BOS
Nonstop1h 45mAir Canada
Deal found 9/16$217
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/128:20 pmBOS - YTZ
Nonstop1h 49mPorter Airlines
dom. 10/199:50 amYTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 9/14$217
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/1510:10 amBOS - YTZ
Nonstop1h 49mPorter Airlines
mié. 10/223:10 pmYTZ - BOS
Nonstop1h 41mPorter Airlines
Deal found 9/15$218

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 septiembre 16, 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

jue. 10/23

12:15 pm-2:04 pm

Nonstop1h 49m

Toronto Island

vie. 10/24

8:20 pm-10:01 pm

Nonstop1h 41m

$218

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

mié. 10/22

7:15 pm-9:04 pm

Nonstop1h 49m

Toronto Island

mié. 10/29

11:05 am-12:40 pm

Nonstop1h 35m

$220

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

mié. 10/15

3:15 pm-9:34 pm

1 stop6h 19m

Toronto Island

sáb. 10/18

12:25 pm-5:55 pm

1 stop5h 30m

$225

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

sáb. 11/8

5:30 am-11:42 am

2 stops6h 12m

Toronto Island

mar. 11/11

8:50 am-2:52 pm

2 stops6h 02m

$235

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

jue. 10/23

7:15 pm-9:04 pm

Nonstop1h 49m

Toronto Island

dom. 10/26

8:00 am-9:35 am

Nonstop1h 35m

$247

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

lun. 11/3

7:05 am-9:04 am

Nonstop1h 59m

Toronto Island

jue. 11/6

11:05 am-12:40 pm

Nonstop1h 35m

$260

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

jue. 10/30

10:20 am-12:19 pm

Nonstop1h 59m

Toronto Island

jue. 11/6

8:00 am-9:35 am

Nonstop1h 35m

$260

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

mié. 10/22

3:30 pm-7:03 pm

1 stop3h 33m

Toronto Island

vie. 10/24

8:20 pm-10:01 pm

Nonstop1h 41m

$261

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

mié. 10/22

6:00 am-11:49 am

1 stop5h 49m

Toronto Pearson Intl

mié. 10/22

2:30 pm-11:59 pm

1 stop9h 29m

$268

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

sáb. 10/18

10:20 am-2:45 pm

1 stop4h 25m

Toronto Island

lun. 10/20

5:25 pm-9:25 pm

1 stop4h 00m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 39 results
1
2
3
4

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 September 12, 2025.

Booking 51 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 August is currently the most expensive (average of $348). 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 septiembre 16, 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 20% 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 Friday at noon when fares are most often at their lowest. Sunday 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 septiembre 16, 2025.

The most flights from BOS to YTO are scheduled on a Monday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

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 septiembre 16, 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 stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Porter Airlines
7.9
Good
363 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Transat
7.7
Good
438 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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

  • How long is the flight from Boston to Toronto?

    Porter Airlines, Air Canada, and United Airlines can get you from Boston to Toronto in just under 1h 49m. Your travel time can differ by up to 4h 30m. The distance between Boston and Toronto is about 432 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Porter Airlines, at $126, was found to be the cheapest airline from Boston to Toronto.Alternate airlines to your destination round-trip include Air Canada and Air Transat. Porter Airlines is priced at 60% lower than the current average price of a flight leaving 3 months from now.

  • 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 (86%), ITA Airways (81%), Jazz (73%).

  • What are the cheapest flights from Boston to Toronto?

    While on average a flight from Boston to Toronto is generally $892, our data shows the cheapest flight currently is $81. When looking at the most popular route, (Boston Logan Intl - Toronto Pearson Intl), you can expect to pay $209 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 August is currently the most expensive (average of $348). 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 septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$126Average$292FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$195Average$365FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$229Average$357FlexibilityNo cancel feeOn-time50%
United AirlinesCheapest$240Average$384FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$286Average$360FlexibilityNo cancel feeOn-time71%

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.