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.

$130 CHEAP FLIGHTS from Ontario to Boston

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Cheap Flights from Ontario to Boston

Cheap flights from Ontario to Boston with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Round-trip

One-way

Last minute

Direct

Sat, Oct 31 - Sun, Nov 15

8:20 am - 2:53 pmYTZ Toronto Island-BOS Boston Logan Intl

6h 33m2 stops Ottawa Montreal Pierre Elliott Trudeau Intl

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

2h 03mnonstop

$194Air Canada

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

$196Air Canada

Fri, Oct 30 - Sun, Nov 1

10:53 am - 7:14 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

8h 21m1 stop Chicago O'Hare Intl

6:36 pm - 11:59 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 23m1 stop Chicago O'Hare Intl

$227Lufthansa

Tue, Nov 17 - Tue, Nov 24

8:35 am - 3:50 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

7h 15m1 stop Chicago O'Hare Intl

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

2h 05mnonstop

$232Multiple Airlines

Fri, Nov 13 - Mon, Nov 16

3:35 pm - 11:35 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

8h 00m1 stop Chicago O'Hare Intl

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

6h 14m1 stop Chicago O'Hare Intl

$237United Airlines

Thu, Nov 5 - Sun, Nov 8

9:44 am - 3:50 pmYYZ Toronto Pearson Intl-BOS Boston Logan Intl

6h 06m1 stop Newark

7:31 am - 4:47 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

9h 16m1 stop Chicago O'Hare Intl

$241United Airlines

Fri, Oct 30 - Sat, Oct 31

6:15 am - 10:31 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

4h 16m1 stop Philadelphia

4:01 pm - 9:40 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 39m1 stop Philadelphia

$241American Airlines

Wed, Nov 25 - Sat, Nov 28

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

5h 14m1 stop New York LaGuardia

8:02 am - 3:32 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

7h 30m1 stop Philadelphia

$241American Airlines

Thu, Oct 29 - Sat, Nov 7

7:20 am - 9:10 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 50mnonstop

1:15 pm - 6:57 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 42m1 stop Ottawa

$247Porter Airlines

Tue, Oct 27 - Tue, Nov 3

7:20 am - 9:10 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 50mnonstop

1:15 pm - 6:57 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

5h 42m1 stop Ottawa

$248Porter Airlines

Sat, Oct 17 - Sun, Nov 15

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

$306Air Canada

Sat, Oct 17 - Mon, Nov 16

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

$306Air Canada

Fri, Oct 16 - Tue, Oct 20

2:45 pm - 4:12 pmYOW Ottawa-BOS Boston Logan Intl

1h 27mnonstop

3:55 pm - 5:23 pmBOS Boston Logan Intl-YOW Ottawa

1h 28mnonstop

$352Porter Airlines

Sat, Oct 17 - Sat, Oct 24

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 17 - Tue, Oct 20

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 17 - Sun, Nov 15

3:05 pm - 4:44 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 39mnonstop

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

1h 54mnonstop

$362Porter Airlines

Mon, Oct 19 - Thu, Oct 22

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

5h 22m1 stop New York LaGuardia

6:59 am - 1:43 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

6h 44m1 stop Washington, D.C. Reagan-National

$431American Airlines

Mon, Oct 19 - Thu, Oct 22

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

$464Air Transat

Thu, Oct 15 - Mon, Oct 19

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

$469Air Transat

Mon, Oct 19 - Thu, Oct 22

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

1h 40mnonstop

10:28 am - 4:47 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

6h 19m1 stop Washington, D.C. Reagan-National

$475American 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

$196Air Canada

Fri, Dec 4 - Sun, Dec 6

12:30 pm - 2:09 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 39mnonstop

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

2h 03mnonstop

$198Air Canada

Wed, Nov 4 - Sat, Nov 7

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

$260Porter Airlines

Thu, Nov 26 - Wed, Dec 2

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

1h 50mnonstop

5:30 pm - 7:40 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 10mnonstop

$260Porter Airlines

Mon, Nov 23 - Mon, Nov 30

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

1h 50mnonstop

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

2h 05mnonstop

$263Multiple Airlines

Mon, Nov 23 - Mon, Nov 30

11:00 am - 12:35 pmYTZ Toronto Island-BOS Boston Logan Intl

1h 35mnonstop

7:40 pm - 9:43 pmBOS Boston Logan Intl-YTZ Toronto Island

2h 03mnonstop

$275Multiple 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

$331United Airlines

Sat, Oct 24 - Mon, Oct 26

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

$377Air Transat

Fri, Oct 23 - Mon, Oct 26

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

$378Air Transat

Tue, Nov 10 - Tue, Nov 17

8:35 am - 10:22 amYYZ Toronto Pearson Intl-BOS Boston Logan Intl

1h 47mnonstop

7:40 pm - 9:41 pmBOS Boston Logan Intl-YYZ Toronto Pearson Intl

2h 01mnonstop

$413United Airlines

Low season	January
High season	October
Cheapest flight	$130

Best time to beat the crowds but there is an average 20% increase in price.

Most popular time to fly and prices are also 7% 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

Revere

Warwick

Hampton

Middletown

South Portland

Wells

Waltham

Plymouth

Brookline

Woburn

Concord

Gloucester

Burlington

Seekonk

Danvers

York Beach

West Yarmouth

Somerville

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$130 Find Cheap Flights from Ontario to Boston - Compare and Save

Cheap Flights from Ontario to Boston

Cheap flights from Ontario to Boston with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

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

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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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