Choose up to 4 origin airports
Enter a location to see nearby airports
Skip to main content
Ontario to North America Flight Information
| Flights Arrive in | North America |
| Flights Depart from | Ontario |
| Flight Price | $117 |
| Airlines | Frontier, United Airlines, American Airlines, Alaska Airlines, Delta |
Book cheap flights from Ontario to North America (round-trip)
Trip: 6 days
Overall null null
Based on null reviews
United Airlines
Tue, Nov 6
ONT
Ontario
DEN
Denver International
2h 06m
Sat, Nov 10
DEN
Denver International
ONT
Ontario
2h 29m
Trip: 5 days
Overall null null
Based on null reviews
American Airlines
Sat, Jan 26
ONT
Ontario
SJC
San Jose
6h 12m
Wed, Feb 20
SJC
San Jose
ONT
Ontario
5h 38m
Trip: 26 days
Overall null null
Based on null reviews
Alaska Airlines
Sat, Nov 3
ONT
Ontario
SEA
Seattle/Tacoma Intl
2h 45m
Tue, Nov 6
SEA
Seattle/Tacoma Intl
ONT
Ontario
2h 40m
Trip: 4 days
Overall null null
Based on null reviews
Delta
Sat, Dec 1
ONT
Ontario
SEA
Seattle/Tacoma Intl
6h 29m
Tue, Dec 4
SEA
Seattle/Tacoma Intl
ONT
Ontario
2h 35m
Trip: 4 days
Overall null null
Based on null reviews
Trip: 4 days
Overall null null
Based on null reviews
United Airlines
Tue, Oct 30
ONT
Ontario
DEN
Denver International
2h 06m
Tue, Nov 6
DEN
Denver International
ONT
Ontario
2h 39m
Trip: 8 days
Overall null null
Based on null reviews
Frontier
Mon, Nov 5
ONT
Ontario
DEN
Denver International
2h 19m
Tue, Nov 13
DEN
Denver International
ONT
Ontario
2h 39m
Trip: 9 days
Overall null null
Based on null reviews
Trip: 2 days
Overall null null
Based on null reviews
Trip: 9 days
Overall null null
Based on null reviews
Alaska Airlines
Sat, Nov 3
ONT
Ontario
SEA
Seattle/Tacoma Intl
2h 45m
Tue, Nov 6
SEA
Seattle/Tacoma Intl
ONT
Ontario
2h 40m
Trip: 4 days
Overall null null
Based on null reviews
American Airlines
Tue, Oct 16
ONT
Ontario
SAT
San Antonio
4h 53m
Thu, Oct 18
SAT
San Antonio
ONT
Ontario
3h 10m
Trip: 3 days
Overall null null
Based on null reviews
United Airlines
Tue, Jan 8
ONT
Ontario
SMF
Sacramento Intl
3h 21m
Wed, Jan 9
SMF
Sacramento Intl
ONT
Ontario
3h 01m
Trip: 2 days
Overall null null
Based on null reviews
Trip: 4 days
Overall null null
Based on null reviews
Frontier
Fri, Nov 30
ONT
Ontario
SAT
San Antonio
2h 50m
Tue, Dec 4
SAT
San Antonio
ONT
Ontario
4h 41m
Trip: 5 days
Overall null null
Based on null reviews
Alaska Airlines
Mon, Dec 3
ONT
Ontario
PDX
Portland
2h 25m
Wed, Dec 5
PDX
Portland
ONT
Ontario
2h 15m
Trip: 3 days
Overall null null
Based on null reviews
American Airlines
Sat, Oct 27
ONT
Ontario
PHX
Phoenix Sky Harbor Intl
1h 15m
Mon, Oct 29
PHX
Phoenix Sky Harbor Intl
ONT
Ontario
1h 17m
Trip: 3 days
Overall null null
Based on null reviews
United Airlines
Fri, Dec 7
ONT
Ontario
SMF
Sacramento Intl
5h 12m
Mon, Dec 10
SMF
Sacramento Intl
ONT
Ontario
3h 55m
Trip: 4 days
Overall null null
Based on null reviews
Trip: 4 days
Overall null null
Based on null reviews
Ontario - North America Flights
*
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.
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
email
and someone from our team will get back to you promptly.