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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$125 CHEAP FLIGHTS from Ontario to Boston

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

...and more

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Cheapest round-trip

$210

Overall average: $292

Air Canada

Mon 3/2Mon 3/9

YYZ - BOS • Non-stop

Cheapest one-way

$125

Typical prices: $186-$337

Air Canada

Sat 2/7

YYZ - BOS • Non-stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Boston!

Flight Deals

Cheap Flights from Ontario to Boston

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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, Mar 2 - Mon, Mar 9

8:55 pm - 10:37 pm

YYZ

BOS

1h 42mnonstop

6:15 am - 8:17 am

BOS

YYZ

2h 02mnonstop

$210Air Canada

Fri, Mar 13 - Sun, Mar 15

8:00 am - 9:35 am

YTZ

BOS

1h 35mnonstop

1:25 pm - 3:24 pm

BOS

YTZ

1h 59mnonstop

$211Porter Airlines

Mon, Mar 2 - Mon, Mar 9

1:00 pm - 7:12 pm

YYZ

BOS

6h 12m

1 stop

6:15 am - 8:17 am

BOS

YYZ

2h 02mnonstop

$211Air Canada

Fri, Apr 10 - Mon, Apr 13

8:30 pm - 10:05 pm

YTZ

BOS

1h 35mnonstop

1:25 pm - 3:24 pm

BOS

YTZ

1h 59mnonstop

$212Porter Airlines

Sat, Jan 31 - Tue, Feb 3

3:40 pm - 11:57 pm

YYZ

BOS

8h 17m

1 stop

5:34 am - 11:20 pm

BOS

YYZ

17h 46m

1 stop

$212Multiple Airlines

Fri, Feb 13 - Wed, Feb 18

8:00 am - 9:35 am

YTZ

BOS

1h 35mnonstop

6:55 pm - 8:52 pm

BOS

YTZ

1h 57mnonstop

$213Porter Airlines

Tue, Apr 21 - Fri, Apr 24

8:15 am - 9:56 am

YYZ

BOS

1h 41mnonstop

6:40 pm - 11:54 pm

BOS

YYZ

5h 14m

1 stop

$213Air Canada

Thu, Feb 19 - Sun, Feb 22

9:30 am - 11:05 am

YTZ

BOS

1h 35mnonstop

6:55 pm - 8:52 pm

BOS

YTZ

1h 57mnonstop

$214Porter Airlines

Wed, Feb 25 - Tue, Mar 3

10:00 am - 2:52 pm

YYZ

BOS

4h 52m

1 stop

5:30 am - 11:40 am

BOS

YYZ

6h 10m

1 stop

$214Air Canada

Wed, May 20 - Fri, May 22

6:10 pm - 5:40 pm

YHM

BOS

23h 30m

1 stop

6:25 pm - 5:10 pm

BOS

YHM

22h 45m

1 stop

$396WestJet

Useful Info

Low season	November
High season	August
Cheapest flight	$125

Best time to beat the crowds with an average 6% drop in price.

Most popular time to fly with an average 5% increase in price.

Flight from Toronto Pearson Airport to Boston

JenFlew with Porter Airlines

YTZ

BOS

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

YYZ

BOS

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

Hampton

Waltham

Wells

Warwick

Plymouth

Middletown

Everett

Gloucester

Concord

Woburn

York Beach

Brookline

Revere

Burlington

West Yarmouth

Danvers

South Portland

Braintree

Quincy

Everything you need to know for your flight to Boston

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Boston

Boston (BOS)

$125 Find Cheap Flights from Ontario to Boston

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

Everything you should know

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

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

FAQs for booking flights from Ontario to Boston

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.

Traveling to a place near Boston?

Everything you need to know for your flight to Boston

Information on the airport you'll fly into in Boston

Cabin class types available on flights to Ontario

Complete your trip to Boston with a hotel stay or car rental

Find direct flights for Boston

Flights to other popular destinations

Flights from domestic origins to Boston

Choose which airport to fly into in Boston

Find deals for your return flight