BOS

C$ 178 Find Cheap Flights from Ontario to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boston departing on 30/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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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.

Recent round-trip flight deals from Ontario to Boston

Sat, 16 May - Sun, 17 May
Porter Airlines Logo
9:00 a.m. - 10:41 a.m.
YTZ
-
BOS
1h 41mdirect
Porter Airlines Logo
7:10 a.m. - 8:57 a.m.
BOS
-
YTZ
1h 47mdirect
C$ 281Porter Airlines
Thu, 14 May - Sun, 17 May
Porter Airlines Logo
9:00 a.m. - 10:41 a.m.
YTZ
-
BOS
1h 41mdirect
Porter Airlines Logo
7:10 a.m. - 8:57 a.m.
BOS
-
YTZ
1h 47mdirect
C$ 283Porter Airlines
Tue, 9 Jun - Mon, 15 Jun
Porter Airlines Logo
1:55 p.m. - 7:05 p.m.
YTZ
-
BOS
5h 10m
1 stop
Porter Airlines Logo
7:10 a.m. - 8:57 a.m.
BOS
-
YTZ
1h 47mdirect
C$ 284Porter Airlines
Tue, 2 Jun - Thu, 4 Jun
Porter Airlines Logo
7:25 a.m. - 9:05 a.m.
YYZ
-
BOS
1h 40mdirect
Porter Airlines Logo
10:05 a.m. - 12:00 p.m.
BOS
-
YYZ
1h 55mdirect
C$ 284Porter Airlines
Sat, 6 Jun - Wed, 10 Jun
Air Canada Logo
11:55 a.m. - 5:59 p.m.
YQT
-
BOS
6h 04m
1 stop
Air Canada Logo
10:45 a.m. - 5:20 p.m.
BOS
-
YQT
6h 35m
1 stop
C$ 494Air Canada
Tue, 9 Jun - Wed, 10 Jun
Air Canada Logo
5:10 a.m. - 2:47 p.m.
YQT
-
BOS
9h 37m
2 stops
Air Canada Logo
10:45 a.m. - 5:20 p.m.
BOS
-
YQT
6h 35m
1 stop
C$ 499Air Canada
Sat, 23 May - Mon, 25 May
Multiple Airlines Logo
8:15 a.m. - 11:54 p.m.
YHM
-
BOS
15h 39m
1 stop
Multiple Airlines Logo
5:45 a.m. - 3:55 p.m.
BOS
-
YHM
10h 10m
1 stop
C$ 499Multiple Airlines
Fri, 22 May - Tue, 26 May
WestJet Logo
7:50 p.m. - 5:40 p.m.
YQT
-
BOS
21h 50m
1 stop
WestJet Logo
6:30 p.m. - 7:00 p.m.
BOS
-
YQT
24h 30m
1 stop
C$ 544WestJet
Sat, 23 May - Sun, 24 May
WestJet Logo
6:10 a.m. - 5:40 p.m.
YXU
-
BOS
11h 30m
1 stop
WestJet Logo
6:30 p.m. - 5:20 a.m.
BOS
-
YXU
10h 50m
1 stop
C$ 620WestJet
Tue, 2 Jun - Thu, 4 Jun
Multiple Airlines Logo
8:50 a.m. - 7:05 p.m.
YHM
-
BOS
10h 15m
2 stops
Multiple Airlines Logo
6:30 p.m. - 11:13 p.m.
BOS
-
YHM
28h 43m
1 stop
C$ 702Multiple Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flightC$ 178
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Toronto Pearson Airport to Boston

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

Insights shared by verified travellers who flew the route from Ontario to Boston 
Learn how KAYAK collects reviews and tips from users.
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!

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.

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Old Orchard Beach
Hampton Beach
Ogunquit
Cambridge
Wells
Waltham
Kennebunkport
Hampton
Woburn
Marlborough
South Portland
Revere
Merrimack
Nashua
Burlington
Andover
Saco
Quincy
Laconia
Lowell

Everything you need to know for your flight to Boston

Information on the airport you'll fly into in Boston

Boston (BOS)