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

Thu, Nov 5 - Thu, Nov 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

$188Porter Airlines

Thu, Nov 5 - Thu, Nov 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

Sun, Oct 11 - Fri, Oct 16

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

$190Air Transat

Fri, Oct 16 - 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

$190Air Transat

Sat, Oct 10 - Sun, Oct 11

4:30 pm - 9:26 pmYTZ Toronto Island-BOS Boston Logan Intl

4h 56m1 stop Montreal Pierre Elliott Trudeau Intl

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

4h 15m1 stop Montreal Pierre Elliott Trudeau Intl

$193Air Canada

Sat, Oct 10 - Sun, Oct 11

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

1h 45mnonstop

6:50 pm - 11:18 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 28m1 stop Montreal Pierre Elliott Trudeau Intl

$193Air Canada

Sat, Oct 3 - Sun, Oct 4

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

3h 56m1 stop Montreal Pierre Elliott Trudeau Intl

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

1h 47mnonstop

$211Multiple Airlines

Sat, Oct 10 - Sun, Oct 11

4:30 pm - 9:26 pmYTZ Toronto Island-BOS Boston Logan Intl

4h 56m1 stop Montreal Pierre Elliott Trudeau Intl

3:55 pm - 9:50 pmBOS Boston Logan Intl-YTZ Toronto Island

5h 55m1 stop Ottawa

$213Multiple Airlines

Wed, Nov 18 - Sun, Nov 22

6:00 am - 12:20 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

6h 20m1 stop Philadelphia

6:00 am - 10:19 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 19m1 stop Philadelphia

$236American Airlines

Thu, Nov 19 - Sun, Nov 22

7:00 am - 12:14 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

5h 14m1 stop New York LaGuardia

6:00 am - 10:19 amBOS Boston Logan Intl-YYZ Toronto Pearson Intl

4h 19m1 stop Philadelphia

$236American Airlines

Recent last minute flight deals from Ontario to Boston

Thu, Sep 24 - Mon, Sep 28

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

$253Porter Airlines

Tue, Sep 29 - Thu, Oct 15

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

$276Porter Airlines

Tue, Sep 29 - Tue, Oct 6

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

$286Air Transat

Tue, Sep 29 - Thu, Oct 15

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

$288Air Transat

Tue, Sep 29 - Thu, Oct 15

10:00 am - 11:51 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 51mnonstop

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

1h 56mnonstop

$311Air Canada

Mon, Sep 28 - Tue, Oct 6

4:15 pm - 6:04 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 49mnonstop

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

1h 52mnonstop

$311Air Canada

Tue, Sep 29 - Tue, Oct 6

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

1h 40mnonstop

3:55 pm - 10:04 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

6h 09m1 stop Ottawa

$317Multiple Airlines

Mon, Sep 28 - Mon, Oct 5

12:45 pm - 7:06 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

6h 21m1 stop Washington, D.C. Dulles Intl

5:50 am - 12:33 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

6h 43m1 stop Montreal Pierre Elliott Trudeau Intl

$335Multiple Airlines

Tue, Sep 29 - Sun, Oct 4

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

3h 50m1 stop Newark

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

5h 43m1 stop Newark

$336United Airlines

Mon, Sep 28 - Tue, Oct 6

3:00 pm - 7:25 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

4h 25m1 stop Newark

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

5h 16m1 stop Chicago O'Hare Intl

$336United Airlines

Recent direct flight deals from Ontario to Boston

Tue, Oct 27 - Fri, Oct 30

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

$189Porter Airlines

Thu, Nov 26 - Tue, Dec 1

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

$189Porter Airlines

Sun, Oct 11 - Fri, Oct 16

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

$190Air Transat

Fri, Oct 16 - 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

$190Air Transat

Wed, Nov 4 - Wed, Nov 11

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

$194Air Canada

Wed, Nov 4 - Wed, Nov 11

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

1h 39mnonstop

9:35 am - 11:38 amBOS Boston Logan Intl-YTZ Toronto Island

2h 03mnonstop

$203Air Canada

Sat, Oct 10 - Sun, Oct 11

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

1h 45mnonstop

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

1h 55mnonstop

$220Multiple Airlines

Sun, Oct 11 - Sun, Oct 18

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

1h 45mnonstop

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

1h 55mnonstop

$230Multiple Airlines

Mon, Oct 5 - Tue, Oct 6

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

$291American Airlines

Tue, Oct 6 - Wed, Oct 7

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

$291American Airlines

Useful Info

Low season	January
High season	August
Cheapest flight	$128

Best time to beat the crowds but there is an average 18% increase in price.

Most popular time to fly and prices are also 16% 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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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