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.

C$ 186 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

Fri, 20 Nov - Sat, 21 Nov

5:20 p.m. - 7:10 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

5:25 p.m. - 7:35 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 273Porter Airlines

3+ days ago

Wed, 18 Nov - Sun, 22 Nov

5:20 p.m. - 7:10 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

9:50 a.m. - 12:00 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 273Porter Airlines

2 days ago

Wed, 18 Nov - Sun, 22 Nov

10:45 a.m. - 2:53 p.m.Toronto Toronto Island-Boston Boston Logan Intl

4h 08m1 stop Montreal Pierre Elliott Trudeau Intl

9:35 a.m. - 11:38 a.m.Boston Boston Logan Intl-Toronto Toronto Island

2h 03mdirect

C$ 278Air Canada

3+ days ago

Thu, 19 Nov - Sun, 22 Nov

10:45 a.m. - 2:53 p.m.Toronto Toronto Island-Boston Boston Logan Intl

4h 08m1 stop Montreal Pierre Elliott Trudeau Intl

9:35 a.m. - 11:38 a.m.Boston Boston Logan Intl-Toronto Toronto Island

2h 03mdirect

C$ 278Air Canada

3+ days ago

Fri, 20 Nov - Mon, 23 Nov

5:20 p.m. - 7:10 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

5:25 p.m. - 7:35 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 322Air Transat

18 hours ago

Sat, 14 Nov - Sat, 21 Nov

7:20 a.m. - 9:10 a.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

5:25 p.m. - 7:35 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 322Air Transat

2 days ago

Fri, 13 Nov - Sun, 15 Nov

8:30 a.m. - 2:53 p.m.Toronto Toronto Island-Boston Boston Logan Intl

6h 23m1 stop Montreal Pierre Elliott Trudeau Intl

8:00 a.m. - 9:54 a.m.Boston Boston Logan Intl-Toronto Toronto Island

1h 54mdirect

C$ 331Multiple Airlines

3+ days ago

Thu, 3 Dec - Fri, 4 Dec

6:00 a.m. - 11:13 a.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

5h 13m1 stop New York John F Kennedy Intl

4:00 p.m. - 8:33 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

4h 33m1 stop New York LaGuardia

C$ 332Delta

3+ days ago

Fri, 4 Dec - Fri, 4 Dec

6:45 a.m. - 12:43 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

5h 58m1 stop Chicago O'Hare Intl

2:58 p.m. - 9:15 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

6h 17m1 stop Chicago O'Hare Intl

C$ 341United Airlines

3+ days ago

Sun, 20 Dec - Mon, 21 Dec

7:43 a.m. - 12:10 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

4h 27m1 stop Newark

7:15 a.m. - 1:43 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

6h 28m1 stop Newark

C$ 355United Airlines

3+ days ago

Recent last minute flight deals from Ontario to Boston

Sun, 1 Nov - Sun, 8 Nov

7:15 a.m. - 8:54 a.m.Toronto Toronto Island-Boston Boston Logan Intl

1h 39mdirect

9:35 a.m. - 11:38 a.m.Boston Boston Logan Intl-Toronto Toronto Island

2h 03mdirect

C$ 328Air Canada

1 day ago

Sun, 1 Nov - Sun, 8 Nov

7:15 a.m. - 8:54 a.m.Toronto Toronto Island-Boston Boston Logan Intl

1h 39mdirect

10:25 a.m. - 3:56 p.m.Boston Boston Logan Intl-Toronto Toronto Island

5h 31m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 336Air Canada

1 day ago

Mon, 2 Nov - Wed, 16 Dec

8:00 p.m. - 9:35 p.m.Toronto Toronto Island-Boston Boston Logan Intl

1h 35mdirect

7:50 p.m. - 9:45 p.m.Boston Boston Logan Intl-Toronto Toronto Island

1h 55mdirect

C$ 420Porter Airlines

1 day ago

Mon, 2 Nov - Tue, 15 Dec

8:00 p.m. - 9:35 p.m.Toronto Toronto Island-Boston Boston Logan Intl

1h 35mdirect

7:50 p.m. - 9:45 p.m.Boston Boston Logan Intl-Toronto Toronto Island

1h 55mdirect

C$ 420Porter Airlines

1 day ago

Mon, 2 Nov - Sun, 13 Dec

5:20 p.m. - 7:10 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

9:50 a.m. - 12:00 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 470Air Transat

1 day ago

Fri, 30 Oct - Sat, 31 Oct

7:55 a.m. - 2:25 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

6h 30m1 stop New York LaGuardia

5:05 p.m. - 11:29 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

6h 24m1 stop New York John F Kennedy Intl

C$ 521Delta

3+ days ago

Sun, 1 Nov - Mon, 14 Dec

7:55 a.m. - 3:23 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

7h 28m1 stop New York LaGuardia

7:00 p.m. - 11:41 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

4h 41m1 stop New York LaGuardia

C$ 523Delta

1 day ago

Thu, 29 Oct - Thu, 5 Nov

7:44 p.m. - 11:59 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

4h 15m1 stop Washington, D.C. Dulles Intl

7:20 a.m. - 1:43 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

6h 23m1 stop Newark

C$ 528United Airlines

3+ days ago

Mon, 2 Nov - Sun, 13 Dec

9:44 a.m. - 1:31 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

3h 47m1 stop Newark

2:58 p.m. - 9:15 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

6h 17m1 stop Chicago O'Hare Intl

C$ 544United Airlines

1 day ago

Mon, 2 Nov - Fri, 18 Dec

5:20 p.m. - 7:10 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

9:50 a.m. - 12:00 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 563Air Transat

1 day ago

Recent direct flight deals from Ontario to Boston

Fri, 20 Nov - Sat, 21 Nov

5:20 p.m. - 7:10 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

5:25 p.m. - 7:35 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 273Porter Airlines

3+ days ago

Wed, 18 Nov - Sun, 22 Nov

5:20 p.m. - 7:10 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

9:50 a.m. - 12:00 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 273Porter Airlines

2 days ago

Wed, 18 Nov - Sun, 22 Nov

8:55 p.m. - 10:37 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 42mdirect

5:45 a.m. - 7:50 a.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 05mdirect

C$ 279Air Canada

3+ days ago

Fri, 20 Nov - Sun, 22 Nov

8:55 p.m. - 10:37 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 42mdirect

5:45 a.m. - 7:50 a.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 05mdirect

C$ 279Air Canada

3+ days ago

Fri, 20 Nov - Mon, 23 Nov

5:20 p.m. - 7:10 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

5:25 p.m. - 7:35 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 322Air Transat

18 hours ago

Sat, 14 Nov - Sat, 21 Nov

7:20 a.m. - 9:10 a.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

5:25 p.m. - 7:35 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 322Air Transat

2 days ago

Tue, 24 Nov - Sat, 28 Nov

5:20 p.m. - 7:10 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

5:25 p.m. - 7:35 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 339Multiple Airlines

3+ days ago

Sat, 21 Nov - Sat, 28 Nov

5:20 p.m. - 7:10 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 50mdirect

5:25 p.m. - 7:35 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 10mdirect

C$ 341Multiple Airlines

2 days ago

Sun, 20 Dec - Mon, 21 Dec

8:55 p.m. - 10:37 p.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 42mdirect

5:45 a.m. - 7:50 a.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 05mdirect

C$ 453United Airlines

3+ days ago

Tue, 22 Dec - Tue, 29 Dec

8:30 a.m. - 10:12 a.m.Toronto Toronto Pearson Intl-Boston Boston Logan Intl

1h 42mdirect

3:10 p.m. - 5:11 p.m.Boston Boston Logan Intl-Toronto Toronto Pearson Intl

2h 01mdirect

C$ 454United Airlines

3+ days ago

Useful Info

Low season	January
High season	August
Cheapest flight	C$ 186

Best time to beat the crowds (1% less expensive on average)

Most popular time to fly and prices are also 8% 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.

Old Orchard Beach

Hampton Beach

Ogunquit

Wells

Cambridge

Kennebunkport

Hampton

Waltham

South Portland

Revere

Saco

Nashua

Woburn

Westbrook

Merrimack

Quincy

Scarborough

West Yarmouth

Concord

Kennebunk

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BOS

C$ 186 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

Low season

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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

Travelling 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

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Find deals for your return flight