How does KAYAK find such low prices on flights from Ontario 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 Ontario to Boston.

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

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

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

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

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario 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 Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$134 CHEAP FLIGHTS from Ontario to Boston

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Cheap Flights from Ontario to Boston

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Ontario to Boston

Fri, Dec 4 - Mon, Dec 7

8:55 pm - 10:37 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 42mnonstop

7:40 pm - 9:41 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 01mnonstop

$224Air Canada

Fri, Dec 4 - Mon, Dec 7

8:55 pm - 10:37 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 42mnonstop

6:35 pm - 10:56 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 21m1 stop Montreal Pierre Elliott Trudeau Intl

$231Air Canada

Fri, Nov 27 - Mon, Nov 30

12:15 pm - 4:43 pmYTZ Toronto Island-BOS Boston Logan Intl

4h 28m1 stop Ottawa

1:15 pm - 6:28 pmBOS Boston Logan Intl-YTZ Toronto Island

5h 13m1 stop Ottawa

$263Porter Airlines

Fri, Dec 4 - Mon, Dec 7

10:35 am - 4:46 pmYTZ Toronto Island-BOS Boston Logan Intl

6h 11m1 stop Ottawa

8:00 am - 9:55 amBOS Boston Logan Intl-YTZ Toronto Island

1h 55mnonstop

$263Porter Airlines

Tue, Jan 19 - Mon, Mar 22

7:20 am - 9:10 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 50mnonstop

5:25 pm - 7:35 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 10mnonstop

$286Air Transat

Wed, Dec 9 - Fri, Dec 11

8:00 pm - 9:34 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 34mnonstop

8:00 am - 9:55 amBOS Boston Logan Intl-YTZ Toronto Island

1h 55mnonstop

$289Air Transat

Wed, Dec 30 - Thu, Dec 31

7:44 pm - 11:59 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

4h 15m1 stop Washington, D.C. Dulles Intl

5:45 am - 7:51 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 06mnonstop

$296Multiple Airlines

Tue, Dec 29 - Fri, Jan 1

7:43 am - 1:26 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 43m1 stop Newark

11:05 am - 1:11 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 06mnonstop

$302Multiple Airlines

Fri, Mar 5 - Mon, Mar 8

7:26 pm - 12:44 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 18m1 stop Chicago O'Hare Intl

7:15 am - 11:48 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 33m1 stop Newark

$312United Airlines

Thu, Dec 24 - Wed, Dec 30

10:30 am - 3:50 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 20m1 stop Newark

5:00 pm - 9:24 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 24m1 stop Newark

$312United Airlines

Recent last minute flight deals from Ontario to Boston

Sun, Nov 15 - Sun, Dec 6

12:15 pm - 4:43 pmYTZ Toronto Island-BOS Boston Logan Intl

4h 28m1 stop Ottawa

1:15 pm - 6:29 pmBOS Boston Logan Intl-YTZ Toronto Island

5h 14m1 stop Ottawa

$345Porter Airlines

Fri, Nov 13 - Sun, Nov 22

12:15 pm - 4:43 pmYTZ Toronto Island-BOS Boston Logan Intl

4h 28m1 stop Ottawa

8:00 am - 9:54 amBOS Boston Logan Intl-YTZ Toronto Island

1h 54mnonstop

$353Porter Airlines

Sun, Nov 15 - Tue, Jan 12

7:20 am - 9:10 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 50mnonstop

5:25 pm - 7:35 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 10mnonstop

$385Air Transat

Sun, Nov 15 - Sun, Dec 6

7:15 am - 8:54 amYTZ Toronto Island-BOS Boston Logan Intl

1h 39mnonstop

5:30 am - 10:10 amBOS Boston Logan Intl-YTZ Toronto Island

4h 40m1 stop Montreal Pierre Elliott Trudeau Intl

$397Air Canada

Sun, Nov 15 - Sun, Dec 6

7:15 am - 8:54 amYTZ Toronto Island-BOS Boston Logan Intl

1h 39mnonstop

5:30 am - 10:10 amBOS Boston Logan Intl-YTZ Toronto Island

4h 40m1 stop Montreal Pierre Elliott Trudeau Intl

$400Air Canada

Sun, Nov 15 - Sun, Nov 22

7:43 am - 12:26 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

4h 43m1 stop Newark

7:41 pm - 11:52 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 11m1 stop Washington, D.C. Dulles Intl

$400United Airlines

Sat, Nov 14 - Sat, Dec 19

7:20 am - 9:10 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 50mnonstop

5:30 pm - 7:40 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 10mnonstop

$405Air Transat

Sun, Nov 15 - Tue, Jan 12

7:43 am - 12:26 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

4h 43m1 stop Newark

5:40 am - 7:46 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 06mnonstop

$408Multiple Airlines

Sun, Nov 15 - Sun, Dec 6

10:30 am - 3:50 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 20m1 stop Newark

6:00 am - 2:03 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

8h 03m1 stop Chicago O'Hare Intl

$409United Airlines

Sun, Nov 15 - Sun, Dec 6

10:30 am - 3:50 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 20m1 stop Newark

5:45 am - 7:51 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 06mnonstop

$410Multiple Airlines

Recent direct flight deals from Ontario to Boston

Fri, Dec 4 - Mon, Dec 7

8:55 pm - 10:37 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 42mnonstop

7:40 pm - 9:41 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 01mnonstop

$224Air Canada

Tue, Dec 1 - Thu, Dec 3

5:20 pm - 7:10 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 50mnonstop

9:50 am - 12:00 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 10mnonstop

$265Porter Airlines

Fri, Dec 25 - Thu, Dec 31

7:20 am - 9:10 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 50mnonstop

5:30 pm - 7:40 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 10mnonstop

$265Porter Airlines

Thu, Nov 26 - Sun, Nov 29

8:55 pm - 10:37 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 42mnonstop

5:45 am - 7:50 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 05mnonstop

$266Air Canada

Tue, Jan 19 - Mon, Mar 22

7:20 am - 9:10 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 50mnonstop

5:25 pm - 7:35 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 10mnonstop

$286Air Transat

Wed, Dec 9 - Fri, Dec 11

8:00 pm - 9:34 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 34mnonstop

8:00 am - 9:55 amBOS Boston Logan Intl-YTZ Toronto Island

1h 55mnonstop

$289Air Transat

Wed, Dec 2 - Wed, Dec 9

5:20 pm - 7:10 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 50mnonstop

5:30 pm - 7:40 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 10mnonstop

$344Multiple Airlines

Sat, Dec 5 - Mon, Dec 7

7:20 am - 9:10 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 50mnonstop

9:50 am - 12:00 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 10mnonstop

$345Multiple Airlines

Thu, Nov 26 - Sun, Nov 29

8:55 pm - 10:37 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 42mnonstop

5:45 am - 7:50 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 05mnonstop

$405United Airlines

Thu, Dec 3 - Sun, Dec 6

8:55 pm - 10:37 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 42mnonstop

5:45 am - 7:50 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 05mnonstop

$405United Airlines

Useful Info

Low season	January
High season	October
Cheapest flight	$134

Best time to beat the crowds but there is an average 16% increase in price.

Most popular time to fly and prices are also 12% lower on average.

Flight from Toronto Pearson Airport to Boston

JenFlew with Porter Airlines-Jan 2026

Get there SUPER EARLY, lines are long, only a few people working. Be prepared to massively overpay for luggage.

Verified travelerFlew with Air Canada-Nov 2024

Don't forget about customs at the Toronto airport--it will take 45+ minutes with the lines unless you have a special status program!

How does KAYAK find such low prices on flights from Ontario 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 Ontario to Boston.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Boston?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Ontario to Boston?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to Ontario with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario 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 Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Hampton Beach

Everett

Revere

Warwick

South Portland

Hampton

Middletown

Wells

Waltham

Plymouth

Brookline

Woburn

Concord

Gloucester

Burlington

Seekonk

Danvers

York Beach

West Yarmouth

Somerville

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$134 Find Cheap Flights from Ontario to Boston - Compare and Save

Cheap Flights from Ontario to Boston

Recent round-trip flight deals from Ontario to Boston

Recent one-way flight deals from Ontario to Boston

Recent last minute flight deals from Ontario to Boston

Recent direct flight deals from Ontario to Boston

Good to know

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High season

Cheapest flight

Flights from Ontario to Boston: the best tips from KAYAK users

FAQs for booking flights from Ontario to Boston

Traveling to a place near Boston?

More options for your flight to Boston

Complete your trip to Boston with a hotel stay or car rental

Information on the airport you'll fly into in Boston

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