YYZ - BOS

£123 Find Cheap Flights from Toronto to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Toronto to Boston departing on 5/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Toronto to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Toronto to Boston, as well as popular online travel agencies
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£180
Overall average: £268
Air Canada
Wed 28/1Wed 4/2
YYZ - BOS • Direct
Cheapest one-way flight
£123
Typical prices: £145-£246
United Airlines
Mon 5/1
YYZ - BOS • 1 stop
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Preclear customs at YYZ for faster US entry.
Use the Silver Line for free transport from BOS.
Expert advice
Expert advice
Expert advice
Expert advice
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 47% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 22% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Boston!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Toronto to Boston (YYZ-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Toronto to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Toronto to Boston

Wed, 28 Jan - Wed, 4 Feb
Air Canada Logo
08:20 - 10:02
YYZ
-
BOS
1h 42mdirect
Air Canada Logo
18:55 - 20:58
BOS
-
YYZ
2h 03mdirect
£180Air Canada
Wed, 28 Jan - Wed, 4 Feb
Air Canada Logo
20:55 - 22:37
YYZ
-
BOS
1h 42mdirect
Air Canada Logo
05:30 - 10:49
BOS
-
YYZ
5h 19m1 stop
£182Air Canada
Wed, 28 Jan - Wed, 4 Feb
Air Canada Logo
10:30 - 12:12
YYZ
-
BOS
1h 42mdirect
Air Canada Logo
05:30 - 11:40
BOS
-
YYZ
6h 10m2 stops
£188Air Canada
Wed, 28 Jan - Wed, 4 Feb
Multiple Airlines Logo
07:00 - 23:57
YYZ
-
BOS
16h 57m2 stops
Multiple Airlines Logo
05:34 - 23:20
BOS
-
YYZ
17h 46m1 stop
£195Multiple Airlines
Wed, 21 Jan - Wed, 21 Jan
United Airlines Logo
09:30 - 15:15
YYZ
-
BOS
5h 45m1 stop
United Airlines Logo
19:07 - 23:46
BOS
-
YYZ
4h 39m1 stop
£203United Airlines
Thu, 8 Jan - Sun, 11 Jan
United Airlines Logo
09:30 - 13:13
YYZ
-
BOS
3h 43m1 stop
United Airlines Logo
06:00 - 11:48
BOS
-
YYZ
5h 48m1 stop
£206United Airlines
Tue, 20 Jan - Wed, 21 Jan
United Airlines Logo
19:40 - 23:49
YYZ
-
BOS
4h 09m1 stop
United Airlines Logo
09:30 - 14:14
BOS
-
YYZ
4h 44m1 stop
£207United Airlines
Wed, 28 Jan - Wed, 4 Feb
Multiple Airlines Logo
06:15 - 23:57
YYZ
-
BOS
17h 42m2 stops
Multiple Airlines Logo
07:00 - 23:20
BOS
-
YYZ
16h 20m2 stops
£213Multiple Airlines
Sun, 11 Jan - Mon, 12 Jan
Air Canada Logo
07:00 - 19:42
YYZ
-
BOS
12h 42m1 stop
Air Canada Logo
18:55 - 20:58
BOS
-
YYZ
2h 03mdirect
£215Air Canada
Wed, 31 Dec - Thu, 8 Jan
United Airlines Logo
19:40 - 10:37
YYZ
-
BOS
14h 57m1 stop
United Airlines Logo
06:00 - 21:21
BOS
-
YYZ
15h 21m1 stop
£220United Airlines
Booking Insights

KAYAK's insights & trends for Toronto to Boston flights

Get data-powered insights and trends into flights from Toronto to Boston to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Toronto to Boston?

The average price of all round-trip flights from Toronto Pearson Intl Airport to Boston clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Toronto to Boston, look for departures on Wednesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Boston, Wednesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Toronto Pearson Intl Airport to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Toronto Pearson Intl Airport to Boston, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Toronto Pearson Intl Airport to Boston is September, where tickets cost £185 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is £269 and £268 respectively.

How far in advance should I book a flight from Toronto Pearson Intl Airport to Boston?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Toronto Pearson Intl Airport to Boston, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Toronto Pearson Intl Airport to Boston, you should book around 3 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Expert advice

Expert advice for your flight from Toronto to Boston

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
YYZ

For US-bound flights, preclear customs at YYZ, saving time upon arrival in the US. Arrive early due to potentially slow preclearance.

BOS

Use the Silver Line for free transport from BOS to central Boston. It takes about 20-30 minutes to South Station.

Our travel experts
Blane Bachelor

Blane Bachelor

Expert on BOS

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specialising in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favourite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on YYZ

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Read more

Good to know - Cheap tickets from Toronto to Boston

Low seasonJanuary
Cheapest flight£123
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Toronto to Boston

When to book flights from Toronto to Boston

Are your dates flexible? Find out the best times to travel from Toronto to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Toronto to Boston flights

  • What is the cheapest flight from Toronto Pearson Intl Airport to Boston?

    In the last 3 days, the lowest price for a flight from Toronto Pearson Intl Airport to Boston was £123 for a one-way ticket and £180 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Toronto to Boston?

    Air Canada, United Airlines, Lufthansa, and JetBlue offer inflight Wi-Fi service on the Toronto to Boston flight route.

  • Which aircraft models fly most regularly from Toronto to Boston?

    The De Havilland (Bombardier) DHC-8-400 Dash 8Q is the aircraft model that flies most regularly on the Toronto to Boston flight route.

  • Which airline alliances offer flights from Toronto to Boston?

    Star Alliance is the only airline alliance operating flights between Toronto and Boston.

  • On which days can I fly direct from Toronto to Boston?

    There are direct flights from Toronto to Boston on a daily basis.

  • How does KAYAK find such low prices on flights from Toronto to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Toronto to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Toronto to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Toronto is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Toronto to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Boston with an airline and back to Toronto with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Toronto to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from Toronto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Toronto to Boston?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Toronto Pearson Intl to Boston Logan Intl.
Find which airlines fly direct from Toronto Pearson Intl Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

Toronto Pearson Intl to Boston Logan Intl

Monday

Air Canada

Air Canada

Tuesday

Air Canada

Air Canada

Wednesday

Air Canada

Air Canada

Thursday

Air Canada

Air Canada

Friday

Air Canada

Air Canada

Saturday

Air Canada

Air Canada

Sunday

Air Canada

Air Canada

See more direct flights

Direct returns

Boston Logan Intl to Toronto Pearson Intl

Monday

Air Canada

Air Canada

Tuesday

Air Canada

Air Canada

Wednesday

Air Canada

Air Canada

Thursday

Air Canada

Air Canada

Friday

Air Canada

Air Canada

Saturday

Air Canada

Air Canada

Sunday

Air Canada

Air Canada

See more direct flights

Reviews of the top airline flying from Toronto to Boston

 
See real verified KAYAK customer reviews for airlines flying from Toronto to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Toronto to Boston? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Air CanadaOverall score based on 10527 reviews
6.8Entertainment
7.8Crew
7.1Comfort
6.3Food
7.3Boarding
Airline reviews

My seat was covered in vomit and I will be reaching out to Air Canada

2.0 MediocreAnonymous, Dec 2025
YYZ - MCO
Read more Air Canada reviews

My seat was covered in vomit and I will be reaching out to Air Canada

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

3 hr delay at the gate while they were doing maintenance. Next time, do not board passengers while maintenance is being performed

Digital check in is very poor with air canada compaired to other airlines

Baggage delayed we had to catch our cruise without any clothes 😒

Air Canada Rouge is great. Toronto Airport is the usual nightmare

Good but need to be better with the flight times.

The staff was great and made the long trip easy peasy!

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

Extremely turbulent landing. Crew was friendly and plane comfortable. Airport and US pre clearance was understaffed

Everything you need to know for your flight from Toronto to Boston

Information on your arrival and departure airports