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.

$116 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

Sat, Dec 5 - Sat, Dec 12

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

1h 50mnonstop

1:15 pm - 7:05 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 50m1 stop Ottawa

$189Porter Airlines

Fri, Oct 30 - Tue, Nov 3

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

1h 50mnonstop

1:15 pm - 7:05 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 50m1 stop Ottawa

$190Porter Airlines

Fri, Oct 16 - Sun, Oct 18

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

$193Air Transat

Sat, Oct 3 - Mon, Oct 5

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

$194Air Transat

Thu, Oct 1 - Sun, Oct 4

9:30 am - 2:41 pmYTZ Toronto Island-BOS Boston Logan Intl

5h 11m1 stop Montreal Pierre Elliott Trudeau Intl

3:35 pm - 9:30 pmBOS Boston Logan Intl-YTZ Toronto Island

5h 55m1 stop Montreal Pierre Elliott Trudeau Intl

$195Air Canada

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

$196Air Canada

Fri, Oct 23 - Sun, Oct 25

10:30 am - 3:57 pmYTZ Toronto Island-BOS Boston Logan Intl

5h 27m1 stop Ottawa

5:30 am - 11:51 amBOS Boston Logan Intl-YTZ Toronto Island

6h 21m1 stop Montreal Pierre Elliott Trudeau Intl

$202Multiple Airlines

Sat, Sep 26 - Sun, Sep 27

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

1h 40mnonstop

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

1h 56mnonstop

$216Multiple Airlines

Tue, Oct 20 - Tue, Oct 27

10:45 am - 2:35 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

3h 50m1 stop Newark

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

6h 14m1 stop Chicago O'Hare Intl

$233United Airlines

Mon, Oct 26 - Thu, Oct 29

5:55 pm - 11:29 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 34m1 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

$238United Airlines

Recent last minute flight deals from Ontario to Boston

Sat, Sep 19 - Sat, Sep 26

11:55 am - 3:50 pmYTZ Toronto Island-BOS Boston Logan Intl

3h 55m1 stop Ottawa

11:10 am - 12:57 pmBOS Boston Logan Intl-YTZ Toronto Island

1h 47mnonstop

$240Porter Airlines

Sat, Sep 19 - Sat, Sep 26

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

$246Porter Airlines

Sat, Sep 19 - Sat, Sep 26

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

$258Air Transat

Sun, Sep 20 - Thu, Sep 24

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

$259Air Transat

Sat, Sep 19 - Sat, Sep 26

8:55 pm - 10:40 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

$278Air Canada

Sat, Sep 19 - Tue, Sep 29

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

1h 45mnonstop

10:50 am - 12:42 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 52mnonstop

$279Air Canada

Fri, Sep 18 - Sat, Sep 26

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

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

7:38 am - 1:47 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

6h 09m1 stop Newark

$304United Airlines

Sat, Sep 19 - Tue, Sep 29

10:45 am - 4:48 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

6h 03m1 stop Newark

5:45 am - 10:04 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 19m1 stop Washington, D.C. Dulles Intl

$304United Airlines

Fri, Sep 18 - Mon, Sep 28

2:30 pm - 10:26 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

7h 56m1 stop New York LaGuardia

2:00 pm - 9:17 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

7h 17m1 stop New York LaGuardia

$304Delta

Fri, Sep 18 - Tue, Sep 29

2:30 pm - 10:26 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

7h 56m1 stop New York LaGuardia

7:00 pm - 11:39 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 39m1 stop New York LaGuardia

$304Delta

Recent direct flight deals from Ontario to Boston

Fri, Sep 25 - Tue, Sep 29

5:15 pm - 6:55 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

$190Porter Airlines

Tue, Sep 29 - Fri, Oct 2

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

$190Porter Airlines

Fri, Oct 16 - Sun, Oct 18

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

$193Air Transat

Sat, Oct 3 - Mon, Oct 5

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

$194Air Transat

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

$196Air Canada

Thu, Oct 29 - Thu, Nov 5

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

$201Air Canada

Sat, Sep 26 - Sun, Sep 27

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

1h 40mnonstop

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

1h 56mnonstop

$216Multiple Airlines

Thu, Oct 29 - Sun, Nov 1

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

$235Multiple Airlines

Thu, Oct 1 - Sun, Oct 4

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

$292American Airlines

Thu, Oct 1 - Sun, Oct 4

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

$292American Airlines

Useful Info

Low season	January
High season	August
Cheapest flight	$116

Best time to beat the crowds but there is an average 5% increase in price.

Most popular time to fly and prices are also 10% 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

Middletown

Wells

Revere

South Portland

Plymouth

Waltham

Brookline

Woburn

Concord

Gloucester

Burlington

York Beach

West Yarmouth

Danvers

Seekonk

Quincy

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$116 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

Flights from domestic origins to Boston

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Find deals for your return flight