Find cheap flights from Ontario to the United States

Find cheap flights from Ontario to the United States

Round-trip
Economy
Boston (BOS)
United States
Fri. 25/9
Fri. 2/10
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to the United States

Good to know

Low season

January Best time to beat the crowds (3% less expensive on average)

High season

December Most popular time to fly (6% more expensive on average)

Average price of a round-trip

C$ 388 (avg. price over the last 2 weeks)

Good deal for a round-trip

C$ 179 or less

FAQs for booking Ontario to United States flights

Which airlines have a flexible cancellation policy for flights from Ontario to the United States due to COVID-19?

Which airlines apply social distancing measures on flights from Ontario to the United States due to COVID-19?

How does KAYAK find such low prices on flights from Ontario to the United States?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to the United States?

What is the Hacker Fare option on flights from Ontario to the United States?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to the United States?

Top airlines flying from Ontario to the United States

Scores according to KAYAK customer reviews

8.7
Korean Air
Overall score based on 4,934 reviews
8.8
Boarding
8.6
Comfort
9.0
Crew
8.5
Entertainment
8.4
Food
Airline reviews
Read more about Korean Air

Book cheap flights from Ontario to United States

Recent round-trip flight deals

10/11
Tue.
direct
British Airways
1h 46m
YYZ - JFK
11/11
Wed.
1 stop
British Airways
9h 24m
JFK - YYZ
24/2
Wed.
direct
Multiple Airlines
1h 34m
YYZ - LGA
3/3
Wed.
direct
Multiple Airlines
1h 48m
LGA - YYZ
17/11
Tue.
1 stop
Delta
4h 54m
YYZ - MCO
18/11
Wed.
1 stop
Delta
4h 35m
MCO - YYZ
7/10
Wed.
direct
Lufthansa
1h 32m
YYZ - EWR
14/10
Wed.
direct
Lufthansa
1h 33m
EWR - YYZ
4/1
Mon.
direct
Swoop
2h 59m
YYZ - MCO
14/1
Thu.
direct
Swoop
2h 47m
MCO - YYZ
2/1
Sat.
direct
Air Transat
3h 00m
YYZ - MCO
31/3
Wed.
direct
Air Transat
2h 55m
MCO - YYZ
22/3
Mon.
1 stop
British Airways
7h 10m
YYZ - LGA
29/3
Mon.
1 stop
British Airways
4h 20m
LGA - YYZ
10/11
Tue.
direct
Multiple Airlines
1h 32m
YYZ - LGA
14/11
Sat.
1 stop
Multiple Airlines
4h 05m
LGA - YYZ
25/2
Thu.
direct
Multiple Airlines
1h 34m
YYZ - LGA
3/3
Wed.
direct
Multiple Airlines
1h 50m
LGA - YYZ
15/12
Tue.
1 stop
Delta
8h 38m
YYZ - FLL
17/12
Thu.
1 stop
Delta
8h 38m
FLL - YYZ
17/11
Tue.
1 stop
British Airways
6h 56m
YYZ - MCO
24/11
Tue.
1 stop
British Airways
8h 10m
MCO - YYZ
16/12
Wed.
direct
Multiple Airlines
1h 36m
YYZ - LGA
24/12
Thu.
1 stop
Multiple Airlines
6h 45m
LGA - YYZ
17/11
Tue.
1 stop
Delta
7h 50m
YYZ - MCO
18/11
Wed.
1 stop
Delta
6h 02m
MCO - YYZ
3/1
Sun.
direct
Swoop
3h 03m
YYZ - MCO
9/1
Sat.
direct
Swoop
2h 47m
MCO - YYZ
11/10
Sun.
1 stop
British Airways
5h 07m
YYZ - FLL
25/10
Sun.
1 stop
British Airways
11h 46m
FLL - YYZ
1/12
Tue.
direct
Multiple Airlines
1h 42m
YYZ - LGA
13/12
Sun.
direct
Multiple Airlines
1h 40m
LGA - YYZ
3/11
Tue.
1 stop
Lufthansa
6h 04m
YYZ - BOS
3/11
Tue.
direct
Lufthansa
1h 58m
BOS - YYZ
18/11
Wed.
1 stop
Delta
5h 12m
YYZ - FLL
8/12
Tue.
1 stop
Delta
5h 31m
FLL - YYZ
18/11
Wed.
direct
Air Transat
3h 25m
YYZ - FLL
9/12
Wed.
direct
Air Transat
3h 10m
FLL - YYZ
3/11
Tue.
1 stop
Lufthansa
6h 04m
YYZ - BOS
3/11
Tue.
direct
Lufthansa
1h 58m
BOS - YYZ
Show more results

Recent one-way flight deals

7/10
Wed.
direct
Lufthansa
1h 26m
YYZ - LGA
10/11
Tue.
1 stop
Delta
8h 48m
YYZ - FLL
11/11
Wed.
direct
Air Transat
3h 25m
YYZ - FLL
11/10
Sun.
1 stop
Multiple Airlines
6h 08m
YYZ - IAH
7/10
Wed.
1 stop
Korean Air
5h 14m
YYZ - JFK
15/10
Thu.
direct
British Airways
1h 52m
YYZ - ORD
17/10
Sat.
1 stop
Qantas Airways
8h 55m
YYZ - LAX
7/10
Wed.
direct
Lufthansa
1h 32m
YYZ - EWR
3/12
Thu.
1 stop
Delta
5h 47m
YYZ - FLL
11/11
Wed.
1 stop
Delta
8h 23m
YYZ - MCO
3/12
Thu.
direct
Air Transat
3h 25m
YYZ - FLL
17/10
Sat.
direct
Lufthansa
5h 07m
YYZ - LAX
29/9
Tue.
1 stop
Delta
5h 15m
YYZ - FLL
30/10
Fri.
1 stop
British Airways
5h 37m
YYZ - ORD
3/12
Thu.
direct
Air Transat
3h 25m
YYZ - FLL
30/10
Fri.
direct
British Airways
1h 52m
YYZ - ORD
14/12
Mon.
direct
Delta
1h 49m
YYZ - JFK
1/11
Sun.
direct
Air Transat
3h 25m
YYZ - FLL
7/10
Wed.
1 stop
Multiple Airlines
12h 56m
YYZ - LGA
30/10
Fri.
1 stop
Delta
5h 52m
YYZ - JFK
Show more results
*
Prices are per person, are for e–tickets and include all taxes & fees in CAD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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