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.

$124 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.

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One-way

Last minute

Direct

Recent round-trip flight deals from Ontario to Boston

Fri, Sep 18 - Mon, Sep 21

7:15 pm - 8:55 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 40mnonstop

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

1h 47mnonstop

$183Porter Airlines

Sun, Sep 20 - Tue, Sep 22

8:50 am - 10:30 amYTZ Toronto Island-BOS Boston Logan Intl

1h 40mnonstop

6:10 pm - 7:57 pmBOS Boston Logan Intl-YTZ Toronto Island

1h 47mnonstop

$184Porter Airlines

Thu, Oct 1 - Sun, Oct 4

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

$186Air Transat

Fri, Oct 16 - Fri, Oct 23

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

1h 45mnonstop

7:05 pm - 8:57 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 52mnonstop

$186Air Canada

Fri, Oct 16 - Fri, Oct 23

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

$187Air Canada

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

$200Air Transat

Sat, Sep 19 - Sun, Sep 20

8:50 am - 10:30 amYTZ Toronto Island-BOS Boston Logan Intl

1h 40mnonstop

5:50 am - 10:05 amBOS Boston Logan Intl-YTZ Toronto Island

4h 15m1 stop Montreal Pierre Elliott Trudeau Intl

$216Multiple Airlines

Thu, Sep 24 - Sun, Sep 27

7:15 am - 8:52 amYTZ Toronto Island-BOS Boston Logan Intl

1h 37mnonstop

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

1h 47mnonstop

$219Multiple Airlines

Tue, Sep 29 - Tue, Sep 29

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

5h 21m1 stop Chicago O'Hare Intl

6:43 pm - 11:59 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 16m1 stop Chicago O'Hare Intl

$229United Airlines

Wed, Sep 30 - Mon, Oct 5

7:30 am - 12:43 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 13m1 stop Newark

6:00 am - 11:43 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 43m1 stop Newark

$235United Airlines

Recent last minute flight deals from Ontario to Boston

Sat, Sep 5 - Sun, Sep 13

1:20 pm - 3:00 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 40mnonstop

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

1h 47mnonstop

$319Porter Airlines

Sat, Sep 5 - Mon, Sep 7

3:35 pm - 5:15 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 40mnonstop

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

1h 47mnonstop

$320Porter Airlines

Fri, Sep 4 - Mon, Sep 7

9:00 am - 2:41 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 41m1 stop Montreal Pierre Elliott Trudeau Intl

6:00 am - 7:55 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 55mnonstop

$340Air Canada

Sun, Sep 6 - Tue, Sep 8

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

$347Air Transat

Fri, Sep 4 - Mon, Sep 7

9:00 am - 2:41 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 41m1 stop Montreal Pierre Elliott Trudeau Intl

5:45 am - 12:35 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

6h 50m1 stop Montreal Pierre Elliott Trudeau Intl

$349Air Canada

Fri, Sep 4 - Mon, Sep 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

$350Air Transat

Sun, Sep 6 - Mon, Sep 14

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

$381American Airlines

Sun, Sep 6 - Tue, Sep 15

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

$381American Airlines

Sun, Sep 6 - Thu, Sep 10

11:00 am - 4:27 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 27m1 stop Chicago O'Hare Intl

9:33 am - 1:47 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 14m1 stop Newark

$397United Airlines

Fri, Sep 4 - Sat, Sep 5

3:00 pm - 9:59 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

6h 59m1 stop Newark

6:00 pm - 10:23 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 23m1 stop Newark

$397United Airlines

Recent direct flight deals from Ontario to Boston

Fri, Sep 18 - Mon, Sep 21

7:15 pm - 8:55 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 40mnonstop

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

1h 47mnonstop

$183Porter Airlines

Sat, Sep 19 - Sun, Sep 20

8:50 am - 10:30 amYTZ Toronto Island-BOS Boston Logan Intl

1h 40mnonstop

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

1h 47mnonstop

$185Porter Airlines

Thu, Oct 1 - Sun, Oct 4

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

$186Air Transat

Fri, Oct 16 - Fri, Oct 23

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

1h 45mnonstop

7:05 pm - 8:57 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 52mnonstop

$186Air Canada

Sat, Oct 10 - Mon, Oct 19

5:20 pm - 7:02 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 42mnonstop

9:40 am - 11:36 amBOS Boston Logan Intl-YTZ Toronto Island

1h 56mnonstop

$192Air Canada

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

$200Air Transat

Thu, Sep 24 - Sun, Sep 27

7:15 am - 8:52 amYTZ Toronto Island-BOS Boston Logan Intl

1h 37mnonstop

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

1h 47mnonstop

$219Multiple Airlines

Sat, Sep 19 - Sun, Sep 20

5:20 pm - 6:57 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 37mnonstop

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

1h 47mnonstop

$220Multiple Airlines

Fri, Oct 16 - Fri, Oct 23

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

1h 49mnonstop

4:55 pm - 6:47 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

1h 52mnonstop

$298United Airlines

Fri, Oct 30 - Wed, Nov 4

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

$320United Airlines

Useful Info

Low season	January
High season	August
Cheapest flight	$124

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

Most popular time to fly and prices are also 9% 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

Wells

Middletown

Waltham

Plymouth

South Portland

Revere

Brookline

Concord

Woburn

Gloucester

York Beach

Burlington

West Yarmouth

Danvers

Seekonk

Braintree

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Boston (BOS)

$124 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

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

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Everything you need to know for your flight to Boston

Information on the airport you'll fly into in Boston

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Choose which airport to fly into in Boston

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