Find Cheap Flights from Ontario to North America

Search hundreds of travel sites at once for deals on flights to North America

Sat 2/17
Sat 2/24
Any month
Compare vs. KAYAK |

Book cheap flights from Ontario to North America (round-trip)

Airports
Origin
Ontario
$77
only
$77
Destination
San Francisco
$108
only
$108
Portland
$147
only
$147
Seattle
$126
only
$126
Phoenix
$109
only
$109
Denver
$87
only
$87
Austin
$77
only
$77
Wed, Apr 11
ONT
AUS
2h 46m
Wed, Apr 18
AUS
ONT
3h 11m
Trip: 8 days
Overall null null
Based on null reviews
Thu, Feb 22
ONT
SFO
7h 02m
Fri, Feb 23
SFO
ONT
6h 36m
Trip: 2 days
Overall null null
Based on null reviews
Tue, Feb 27
ONT
DEN
2h 20m
Tue, Mar 6
DEN
ONT
2h 23m
Trip: 8 days
Overall null null
Based on null reviews
Tue, May 1
ONT
PHX
4h 51m
Sat, May 5
PHX
ONT
6h 07m
Trip: 5 days
Overall null null
Based on null reviews
Thu, Mar 22
ONT
SEA
2h 44m
Mon, Mar 26
SEA
ONT
2h 25m
Trip: 5 days
Overall null null
Based on null reviews
Wed, May 2
ONT
AUS
2h 47m
Wed, May 9
AUS
ONT
3h 09m
Trip: 8 days
Overall null null
Based on null reviews
Wed, Jun 6
ONT
AUS
2h 59m
Wed, Jun 13
AUS
ONT
3h 11m
Trip: 8 days
Overall null null
Based on null reviews
Wed, Feb 28
ONT
DEN
2h 24m
Wed, Mar 7
DEN
ONT
2h 23m
Trip: 8 days
Overall null null
Based on null reviews
Fri, Mar 2
ONT
PHX
1h 24m
Thu, Mar 15
PHX
ONT
1h 16m
Trip: 13 days
Overall null null
Based on null reviews
Thu, Mar 1
ONT
DEN
2h 20m
Sat, Mar 3
DEN
ONT
2h 23m
Trip: 3 days
Overall null null
Based on null reviews
Fri, Mar 9
ONT
SEA
5h 06m
Mon, Mar 12
SEA
ONT
2h 27m
Trip: 3 days
Overall null null
Based on null reviews
Thu, Mar 1
ONT
DEN
2h 20m
Sat, Mar 3
DEN
ONT
2h 23m
Trip: 3 days
Overall null null
Based on null reviews
Tue, Apr 10
ONT
DEN
2h 20m
Tue, Apr 17
DEN
ONT
2h 23m
Trip: 8 days
Overall null null
Based on null reviews
Thu, Mar 1
ONT
DEN
2h 20m
Sun, Mar 4
DEN
ONT
2h 20m
Trip: 4 days
Overall null null
Based on null reviews
Wed, Apr 4
ONT
PHX
1h 16m
Tue, Apr 10
PHX
ONT
1h 19m
Trip: 7 days
Overall null null
Based on null reviews
Sat, Apr 14
ONT
PDX
2h 19m
Tue, Apr 17
PDX
ONT
2h 15m
Trip: 4 days
Overall null null
Based on null reviews
Wed, Apr 18
ONT
SEA
5h 10m
Tue, Apr 24
SEA
ONT
4h 57m
Trip: 7 days
Overall null null
Based on null reviews
Wed, May 2
ONT
AUS
2h 47m
Wed, May 9
AUS
ONT
3h 09m
Trip: 8 days
Overall null null
Based on null reviews
Wed, Apr 25
ONT
PDX
2h 19m
Sat, Apr 28
PDX
ONT
2h 15m
Trip: 4 days
Overall null null
Based on null reviews
Tue, May 22
ONT
DEN
2h 18m
Wed, May 30
DEN
ONT
2h 16m
Trip: 9 days
Overall null null
Based on null reviews

Ontario to North America Flight Information

Flights Arrive in North America
Flights Depart from Ontario
Flight Price $77
Airlines Frontier, American Airlines, United, Alaska Airlines
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
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.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.