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Cheap flights from Boston to Toronto from £84

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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YTO
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Boston Logan Intl to Toronto are usually found in October or September, booked 63 days in advance, depart on a Friday or Wednesday and return on a Tuesday

Cheap 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 12 December 2025.

Wed 31/1206:15BOS - YYZ
Nonstop2h 02mUnited Airlines
Sat 10/106:50YYZ - BOS
1 stop7h 10mUnited Airlines
Deal found 11/12£308
Mon 22/1207:00BOS - YTZ
Nonstop1h 55mPorter Airlines
Fri 26/1208:00YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/12£332
Wed 31/1206:15BOS - YYZ
Nonstop2h 02mUnited Airlines
Thu 1/110:00YYZ - BOS
1 stop13h 54mUnited Airlines
Deal found 9/12£361
Sat 20/1205:20BOS - YYZ
1 stop13h 37mUnited Airlines
Mon 19/119:40YYZ - BOS
1 stop4h 09mUnited Airlines
Deal found 10/12£364
Sat 20/1205:20BOS - YYZ
1 stop13h 37mUnited Airlines
Thu 25/1219:40YYZ - BOS
1 stop4h 14mUnited Airlines
Deal found 10/12£382
Tue 23/1214:15BOS - YYZ
1 stop9h 31mUnited Airlines
Tue 6/121:00YYZ - BOS
1 stop13h 52mUnited Airlines
Deal found 10/12£386
Thu 25/1210:20BOS - YTZ
Nonstop1h 55mPorter Airlines
Thu 1/111:05YTZ - BOS
Nonstop1h 35mPorter Airlines
Deal found 10/12£403
Sun 21/1205:20BOS - YYZ
1 stop13h 37mUnited Airlines
Sun 18/110:30YYZ - BOS
Nonstop1h 42mUnited Airlines
Deal found 10/12£409
Thu 25/1206:45BOS - YYZ
1 stop6h 58mUnited Airlines
Tue 30/1218:40YYZ - BOS
1 stop4h 08mUnited Airlines
Deal found 10/12£409
Wed 17/1209:10BOS - YYZ
1 stop4h 33mUnited Airlines
Sun 21/1219:40YYZ - BOS
1 stop4h 14mUnited Airlines
Deal found 9/12£410
Tue 30/1206:45BOS - YYZ
1 stop5h 03mUnited Airlines
Fri 2/118:40YYZ - BOS
1 stop4h 08mUnited Airlines
Deal found 10/12£414
Sun 21/1214:15BOS - YYZ
1 stop4h 42mUnited Airlines
Mon 29/1218:40YYZ - BOS
1 stop4h 08mUnited Airlines
Deal found 11/12£415

Find 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 12 December 2025.

Round-trip from

£176

One-way from

£84

Popular in

December

Cheapest in

October

Average price

£274

Good round-trip deal

£175 or less
25/1-1/2
  • 25/1-1/2
  • 5 total stops
  • 51h 10m total
  • Boston to Toronto
Search Deals
Porter Airlines
  • Porter Airlines
  • 2/3
  • Nonstop
  • 1h 59m total
  • Boston to Toronto
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£24 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Toronto (YTO).
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 12 December 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 22/1

09:00-10:55

Nonstop1h 55m

Toronto Island

Sat 24/1

09:30-11:05

Nonstop1h 35m

£218

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 24/1

09:00-10:55

Nonstop1h 55m

Toronto Island

Sat 31/1

09:30-11:05

Nonstop1h 35m

£218

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 25/2

18:55-20:52

Nonstop1h 57m

Toronto Island

Thu 26/2

20:30-22:05

Nonstop1h 35m

£218

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 25/2

09:00-10:57

Nonstop1h 57m

Toronto Island

Fri 27/2

13:10-14:45

Nonstop1h 35m

£218

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Wed 18/2

15:30-22:03

1 stop6h 33m

Toronto Island

Sat 28/2

13:10-14:45

Nonstop1h 35m

£222

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Thu 12/2

15:30-22:03

1 stop6h 33m

Toronto Island

Tue 3/3

20:30-22:05

Nonstop1h 35m

£222

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 16/2

15:30-22:03

1 stop6h 33m

Toronto Island

Tue 3/3

20:30-22:05

Nonstop1h 35m

£222

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 16/2

15:30-22:03

1 stop6h 33m

Toronto Island

Wed 25/2

13:10-14:45

Nonstop1h 35m

£222

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Tue 17/2

15:30-22:03

1 stop6h 33m

Toronto Island

Thu 26/2

09:30-11:05

Nonstop1h 35m

£222

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sun 15/2

15:30-22:03

1 stop6h 33m

Toronto Island

Wed 25/2

09:30-11:05

Nonstop1h 35m

£222

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 41 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 return 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 return flight from Boston to Toronto. Price data was last updated on 5 December 2025.

Booking 63 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, April is the cheapest month in which you can book a flight from Boston to Toronto (average of £87). Flying from Boston to Toronto in July is currently the most expensive (average of £172). 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 12 December 2025.

When flying from Boston to Toronto, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 61% versus a flight in the evening.

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 12 December 2025.

The most flights from BOS to YTO are scheduled on a Wednesday (21 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (16 on average).

How often are flights from Boston to Toronto delayed?

About 23% of weekly flights between Boston and Toronto have experienced delays in the past year, with the average delay time being 134 minutes.

What is the most punctual flight time for Boston to Toronto flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Boston to Toronto flights?

Over the past year, Air Canada have had the lowest number of delays on this route, with just 22% of flights being delayed.

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 12 December 2025.
Get a feel of what it's like to fly with Porter Airlines 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
398 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.0

Entertainment

7.0

Food

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very Good
398 reviews
Porter Airlines
8.0
Very Good
398 reviews
Check prices

Comfort

7.9

Crew

8.6

Overall

8.0

Entertainment

7.0

Food

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to Toronto. 1 airline have flights from Logan Intl to Toronto on a regular basis. Booking flights from Boston Logan Intl to Toronto should not be difficult; the airport handles an average of 19 outbound flights to Toronto per day.

  • How long is the flight from Boston to Toronto?

    Airlines like Porter Airlines and United Airlines 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 3h 53m. Boston and Toronto are separated by a distance of 432 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from Boston to Toronto round-trip?

    Cheapflights users have booked flights from Boston to Toronto round-trip from £140. Users have found that Air Canada is 40% cheaper than the other options available to this destination.

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

    Consider Brussels Airlines (92%), Jazz (69%) or ITA Airways (69%) when booking your flight. These represent the most reliable airlines when flying from Boston to Toronto.

  • What are the cheapest flights from Boston to Toronto?

    The cheapest flight price from Boston to Toronto is £761. On average you can expect to pay £1,417. The most popular route, (Boston Logan Intl - Toronto Pearson Intl), can usually be booked for £176.

  • 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 holiday 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 £87). Flying from Boston to Toronto in July is currently the most expensive (average of £172). 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

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Alternative routes for Boston to Toronto

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Pearson Intl flights
Boston to Pierre Elliott Trudeau Intl flights

Top airline flying from Boston to Toronto

Discover the top airline 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 858,174 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£140Average£172FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

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Why should you use Cheapflights to find cheap flight tickets from Boston to Toronto?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Toronto from Boston.

Can Cheapflights find flights from Boston to Toronto with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston to Toronto flexibly with Cheapflights today.

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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