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.

$128 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

Tue, Oct 27 - Fri, Oct 30

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

$189Air Canada

Sat, Oct 24 - Tue, Oct 27

10:05 am - 11:50 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 45mnonstop

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

2h 05mnonstop

$189Air Canada

Sat, Oct 24 - Sat, Oct 31

7:25 am - 9:05 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 40mnonstop

1:10 pm - 7:05 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 55m1 stop Ottawa

$190Porter Airlines

Tue, Oct 27 - Fri, Oct 30

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

1h 50mnonstop

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

2h 10mnonstop

$193Porter Airlines

Sat, Oct 24 - Sun, Oct 25

11:00 am - 7:22 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

8h 22m1 stop Chicago O'Hare Intl

5:30 am - 10:46 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 16m1 stop Montreal Pierre Elliott Trudeau Intl

$236Multiple Airlines

Fri, Oct 23 - Sun, Oct 25

4:55 pm - 6:35 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 40mnonstop

5:30 am - 10:46 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 16m1 stop Montreal Pierre Elliott Trudeau Intl

$237Multiple Airlines

Sat, Oct 24 - Sat, Oct 31

7:00 am - 2:07 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

7h 07m1 stop Chicago O'Hare Intl

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

8h 03m1 stop Chicago O'Hare Intl

$249United Airlines

Sat, Oct 24 - Tue, Oct 27

11:00 am - 7:22 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

8h 22m1 stop Chicago O'Hare Intl

9:12 am - 4:47 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

7h 35m1 stop Chicago O'Hare Intl

$249United Airlines

Fri, Oct 30 - Sun, Nov 1

2:20 pm - 3:52 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 32mnonstop

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

1h 54mnonstop

$295Air Transat

Fri, Oct 30 - Sun, Nov 1

2:20 pm - 3:52 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 32mnonstop

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

1h 54mnonstop

$296Air Transat

Recent last minute flight deals from Ontario to Boston

Sat, Oct 10 - Sun, Oct 18

7:25 am - 9:05 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 40mnonstop

10:05 am - 12:00 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 55mnonstop

$322Porter Airlines

Sat, Oct 10 - Sat, Oct 17

8:55 pm - 10:40 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 45mnonstop

5:05 pm - 6:57 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 52mnonstop

$355Multiple Airlines

Sat, Oct 10 - Sat, Oct 17

2:20 pm - 4:05 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 45mnonstop

12:45 pm - 2:33 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 48mnonstop

$355Multiple Airlines

Sat, Oct 10 - Sun, Oct 18

1:35 pm - 3:14 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 39mnonstop

3:55 pm - 8:15 pmBOS Boston Logan Intl-YTZ Toronto Island

4h 20m1 stop Ottawa

$368Porter Airlines

Sun, Oct 11 - Sat, Oct 17

10:45 am - 2:41 pmYTZ Toronto Island-BOS Boston Logan Intl

3h 56m1 stop Montreal Pierre Elliott Trudeau Intl

7:45 pm - 9:41 pmBOS Boston Logan Intl-YTZ Toronto Island

1h 56mnonstop

$373Air Canada

Sun, Oct 11 - Sun, Oct 18

8:10 am - 9:55 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 45mnonstop

6:00 am - 7:56 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 56mnonstop

$374Air Canada

Fri, Oct 9 - Tue, Oct 13

4:55 pm - 6:35 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 40mnonstop

10:05 am - 12:00 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 55mnonstop

$491Air Transat

Fri, Oct 9 - Sun, Oct 11

4:55 pm - 6:35 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 40mnonstop

10:05 am - 12:00 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 55mnonstop

$491Air Transat

Thu, Oct 8 - Mon, Oct 12

7:22 am - 12:44 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 22m1 stop New York LaGuardia

6:00 am - 11:59 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 59m1 stop Washington, D.C. Reagan-National

$502American Airlines

Sat, Oct 10 - Thu, Oct 15

7:25 am - 9:05 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 40mnonstop

7:59 am - 12:07 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 08m1 stop New York LaGuardia

$546American Airlines

Recent direct flight deals from Ontario to Boston

Tue, Oct 27 - Fri, Oct 30

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

$189Air Canada

Sat, Oct 24 - Tue, Oct 27

10:05 am - 11:50 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 45mnonstop

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

2h 05mnonstop

$189Air Canada

Tue, Oct 27 - Fri, Oct 30

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

1h 50mnonstop

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

2h 10mnonstop

$193Porter Airlines

Tue, Oct 27 - Wed, Oct 28

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

1h 50mnonstop

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

2h 10mnonstop

$194Porter Airlines

Fri, Oct 30 - Sun, Nov 1

2:20 pm - 3:52 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 32mnonstop

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

1h 54mnonstop

$295Air Transat

Fri, Oct 30 - Sun, Nov 1

2:20 pm - 3:52 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 32mnonstop

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

1h 54mnonstop

$296Air Transat

Fri, Oct 23 - Sun, Oct 25

2:20 pm - 4:05 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 45mnonstop

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

2h 05mnonstop

$307Lufthansa

Sat, Oct 24 - Sun, Oct 25

8:10 am - 9:55 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 45mnonstop

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

2h 05mnonstop

$333United Airlines

Thu, Oct 22 - Mon, Oct 26

4:55 pm - 6:35 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 40mnonstop

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

2h 10mnonstop

$347Multiple Airlines

Fri, Oct 30 - Sun, Nov 1

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

$416United Airlines

Useful Info

Low season	January
High season	August
Cheapest flight	$128

Best time to beat the crowds but there is an average 19% increase in price.

Most popular time to fly and prices are also 15% lower on average.

Flight from Toronto Island 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

Warwick

Hampton

Revere

Wells

Middletown

South Portland

Waltham

Plymouth

Brookline

Woburn

Concord

Gloucester

Burlington

York Beach

Seekonk

Danvers

West Yarmouth

Somerville

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$128 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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Find direct flights for Boston

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Find deals for your return flight