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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Flight Deals

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

Mon, Oct 26 - Fri, Oct 30

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

$188Porter Airlines

Tue, Oct 27 - Sat, Oct 31

10:35 am - 4:42 pmYTZ Toronto Island-BOS Boston Logan Intl

6h 07m1 stop Ottawa

1:10 pm - 6:28 pmBOS Boston Logan Intl-YTZ Toronto Island

5h 18m1 stop Ottawa

$188Porter Airlines

Sat, Oct 24 - Sun, Oct 25

8:55 pm - 10:40 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

$197Air Canada

Sat, Oct 17 - Sun, Oct 18

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

1h 45mnonstop

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

1h 56mnonstop

$197Air Canada

Mon, Oct 19 - Wed, Oct 21

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

$197Air Transat

Fri, Oct 23 - Fri, Oct 23

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

1h 40mnonstop

7:30 pm - 9:25 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 55mnonstop

$198Air Transat

Fri, Oct 16 - Sun, Oct 18

8:30 am - 2:41 pmYTZ Toronto Island-BOS Boston Logan Intl

6h 11m1 stop Montreal Pierre Elliott Trudeau Intl

7:00 am - 8:47 amBOS Boston Logan Intl-YTZ Toronto Island

1h 47mnonstop

$220Multiple Airlines

Sat, Oct 24 - Sun, Oct 25

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

1h 40mnonstop

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

2h 05mnonstop

$226Multiple Airlines

Tue, Oct 27 - Fri, Oct 30

7:43 am - 1:31 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 48m1 stop Newark

3:01 pm - 9:15 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

6h 14m1 stop Chicago O'Hare Intl

$238United Airlines

Sat, Oct 24 - Mon, Oct 26

7:43 pm - 11:59 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

4h 16m1 stop Washington, D.C. Dulles Intl

7:05 pm - 11:26 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 21m1 stop Newark

$242United Airlines

Recent last minute flight deals from Ontario to Boston

Tue, Sep 29 - Thu, Oct 29

12:00 pm - 1:40 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 40mnonstop

7:50 pm - 9:44 pmBOS Boston Logan Intl-YTZ Toronto Island

1h 54mnonstop

$319Porter Airlines

Fri, Oct 2 - Fri, Oct 16

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

1h 40mnonstop

3:55 pm - 9:44 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 49m1 stop Ottawa

$320Porter Airlines

Sat, Oct 3 - Sat, Oct 10

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

$336Air Transat

Fri, Oct 2 - Fri, Oct 16

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

1h 45mnonstop

5:50 am - 1:02 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

7h 12m2 stops Montreal Pierre Elliott Trudeau Intl Ottawa

$344Air Canada

Sat, Oct 3 - Fri, Oct 16

2:05 pm - 9:26 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

7h 21m2 stops Ottawa Montreal Pierre Elliott Trudeau Intl

7:10 pm - 9:02 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 52mnonstop

$344Air Canada

Fri, Oct 2 - Wed, Oct 7

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

$362Air Transat

Fri, Oct 2 - Sat, Oct 10

4:25 pm - 6:14 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 49mnonstop

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

1h 52mnonstop

$388Emirates

Sat, Oct 3 - Mon, Oct 5

2:20 pm - 4:05 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

$388Multiple Airlines

Sat, Oct 3 - Wed, Oct 14

11:00 am - 4:21 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 21m1 stop Chicago O'Hare Intl

9:51 am - 1:47 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

3h 56m1 stop Newark

$414United Airlines

Fri, Oct 2 - Sun, Oct 11

10:15 am - 4:21 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

6h 06m1 stop Chicago O'Hare Intl

9:51 am - 1:47 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

3h 56m1 stop Newark

$414United Airlines

Recent direct flight deals from Ontario to Boston

Mon, Oct 26 - Fri, Oct 30

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

$188Porter Airlines

Sat, Oct 24 - Sat, Oct 31

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

1h 40mnonstop

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

2h 10mnonstop

$189Porter Airlines

Sat, Oct 24 - Sun, Oct 25

8:55 pm - 10:40 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

$197Air Canada

Sat, Oct 17 - Sun, Oct 18

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

1h 45mnonstop

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

1h 56mnonstop

$197Air Canada

Mon, Oct 19 - Wed, Oct 21

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

$197Air Transat

Wed, Oct 21 - Fri, Oct 23

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

1h 40mnonstop

7:30 pm - 9:25 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 55mnonstop

$198Air Transat

Fri, Oct 23 - Sun, Oct 25

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

1h 40mnonstop

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

2h 05mnonstop

$226Multiple Airlines

Sat, Oct 24 - Sun, Oct 25

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

1h 40mnonstop

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

2h 05mnonstop

$226Multiple Airlines

Sun, Oct 18 - Wed, Oct 21

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

$296American Airlines

Thu, Oct 15 - Mon, Oct 19

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

1h 40mnonstop

7:30 pm - 9:25 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 55mnonstop

$297American 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

Hampton

Warwick

Wells

Middletown

Revere

South Portland

Waltham

Plymouth

Brookline

Woburn

Concord

Gloucester

Burlington

York Beach

West Yarmouth

Danvers

Seekonk

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 deals for your return flight