Cheap flights from Boston to Toronto from £85

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YTO
4 Aug — 11 Aug1
1 adult

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

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 30 July 2025.

Round-trip from

£175

One-way from

£85

Popular in

November

Cheapest in

March

Average price

£226

Good round-trip deal

£163 or less

Good one-way deal

£120 or less
Air Canada
  • Air Canada
  • 6/9-18/9
  • Nonstop
  • 3h 40m total
  • Boston to Toronto
Porter Airlines
  • Porter Airlines
  • 15/9
  • 1 total stop
  • 3h 33m total
  • Boston to Toronto
Highest demand for flights based on searches. 11% potential increase in price (£22 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Boston Logan Intl to Toronto (YTO).
Price to beat on a one-way flight from Boston Logan Intl to Toronto (YTO).

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 30 July 2025.

Sat 6/910:40BOS - YYZ
Nonstop1h 55mAir Canada
Thu 18/916:25YYZ - BOS
Nonstop1h 45mAir Canada
Deal found 29/7£175
Sat 6/912:15BOS - YTZ
Nonstop1h 49mPorter Airlines
Sun 21/912:00YTZ - BOS
1 stop5h 58mPorter Airlines
Deal found 29/7£181
Sat 6/916:55BOS - YYZ
1 stop6h 16mDelta
Sat 20/906:03YYZ - BOS
1 stop4h 50mDelta
Deal found 29/7£201
Mon 8/919:30BOS - YYZ
1 stop3h 33mAmerican Airlines
Thu 18/910:55YYZ - BOS
1 stop7h 54mAmerican Airlines
Deal found 29/7£205
Sun 24/805:50BOS - YTZ
1 stop5h 56mAir Canada
Tue 26/820:25YTZ - BOS
1 stop13h 05mAir Canada
Deal found 29/7£217
Tue 26/809:43BOS - YYZ
1 stop6h 03mUnited Airlines
Tue 26/818:00YYZ - BOS
1 stop5h 08mUnited Airlines
Deal found 28/7£222
Tue 26/815:30BOS - YYZ
2 stops14h 21mPorter Airlines
Wed 27/809:10YYZ - BOS
2 stops9h 18mPorter Airlines
Deal found 29/7£233
Sat 13/908:25BOS - YYZ
1 stop5h 22mMultiple Airlines
Sun 14/900:30YYZ - BOS
1 stop9h 00mMultiple Airlines
Deal found 29/7£243

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 30 July 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

Sat 6/9

10:40-12:35

Nonstop1h 55m

Toronto Pearson Intl

Thu 18/9

16:25-18:10

Nonstop1h 45m

£175

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sat 6/9

12:15-14:04

Nonstop1h 49m

Toronto Island

Sun 21/9

12:00-17:58

1 stop5h 58m

£181

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 6/9

16:55-23:11

1 stop6h 16m

Toronto Pearson Intl

Sat 20/9

06:03-10:53

1 stop4h 50m

£201

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Mon 8/9

19:30-23:03

1 stop3h 33m

Toronto Pearson Intl

Thu 18/9

10:55-18:49

1 stop7h 54m

£205

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Sun 24/8

05:50-11:46

1 stop5h 56m

Toronto Island

Tue 26/8

20:25-09:30

1 stop13h 05m

£217

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Tue 26/8

09:43-15:46

1 stop6h 03m

Toronto Pearson Intl

Tue 26/8

18:00-23:08

1 stop5h 08m

£222

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Tue 26/8

15:30-05:51

2 stops14h 21m

Toronto Pearson Intl

Wed 27/8

09:10-18:28

2 stops9h 18m

£233

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Sat 13/9

08:25-13:47

1 stop5h 22m

Toronto Pearson Intl

Sun 14/9

00:30-09:30

1 stop9h 00m

£243

BostonToronto

BOS - YTZ

BOSYTZ

Boston Logan Intl

Mon 15/9

15:30-19:03

1 stop3h 33m

£85

BostonToronto

BOS - YYZ

BOSYYZ

Boston Logan Intl

Mon 15/9

06:00-07:56

Nonstop1h 56m

£85

Flights are sorted by cheapest return flights first.

Deals found on 29/7

Showing 1-10 of 17 results
1
2

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 25 July 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 £490). Flying from Boston to Toronto in July is currently the most expensive (average of £708). 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 30 July 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 at midday, which can drop the price by up to 72% 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 30 July 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).

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 30 July 2025.
Get a feel of what it's like to fly with Porter Airlines, Delta, andAir Transat 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.

Boarding

8.2

Crew

8.7

Comfort

8.0

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

Boarding

8.2

Crew

8.7

Comfort

8.0

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
8.0
Very Good

Boarding

8.2

Crew

8.7

Comfort

8.0

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

Boarding

8.2

Crew

8.7

Comfort

8.0

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

Boarding

8.2

Crew

8.7

Comfort

8.0

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

Boarding

8.2

Crew

8.7

Comfort

8.0

Overall

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good 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?

    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. 0 airlines 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 17 outbound flights to Toronto per day.

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

    Cheapflights users have booked flights from Boston to Toronto round-trip from £175. Other airlines that can offer you cheap pricing are Porter Airlines, from £181, and Delta, from £201. Users have found that Air Canada is 27% cheaper than the other options available to this destination.

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

    The cheapet airlines for a one-way flight from Boston to Toronto are Porter Airlines (£85), Air Canada (£85), and Delta (£91).

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

    Consider Brussels Airlines (75%), United Airlines (65%) or Air Canada (62%) 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 £133. On average you can expect to pay £303. The most popular route, (Boston Logan Intl - Toronto Pearson Intl), can usually be booked for £188.

  • 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, January is the cheapest month in which you can book a flight from Boston to Toronto (average of £490). Flying from Boston to Toronto in July is currently the most expensive (average of £708). 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.

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