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Cheap flights from Ontario to United States
Round-trip
Economy
Flight information for Ontario to United States
Find info about flight duration, direct flights, and airports for your flight from Ontario to United States
| Best Price Found | $127 | The best flight deal from Ontario to United States found on momondo in the last 72 hours is $127 | |
| Fastest flight time | 1h 9m | The fastest flight from Ontario to United States takes 1h 9m. | |
| Direct flights | None | There are no direct flights from Ontario to United States. Popular non-direct routes for this connection are Ontario - Seattle/Tacoma Intl, Ontario - New York John F Kennedy Intl and Ontario - Las Vegas McCarran. |
Easily compare round-trip flights from Ontario to United States
Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Ontario to United States by changing tabs
Cheapest
Best
Quickest
Multiple Airlines
Aug 17
ONT
Ontario
7h 17m
1 stop
DFW
Dallas/Fort Worth
Aug 19
DFW
Dallas/Fort Worth
25h 30m
1 stop
ONT
Ontario
$133
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Delta
Jul 8
ONT
Ontario
5h 20m
1 stop
SEA
Seattle/Tacoma Intl
Jul 9
SEA
Seattle/Tacoma Intl
5h 05m
1 stop
ONT
Ontario
$171
Find similar
Multiple Airlines
Aug 17
ONT
Ontario
7h 17m
1 stop
DFW
Dallas/Fort Worth
Aug 24
DFW
Dallas/Fort Worth
6h 50m
1 stop
ONT
Ontario
$139
Find similar
Find the cheapest one-way flights from Ontario to United States
If you're looking for one-way flights from Ontario to United States, view some of our deals below provided by Delta
Cheapest
Best
Quickest
Multiple Airlines
Aug 13
ONT
Ontario
23h 00m
1 stop
DFW
Dallas/Fort Worth
$70
Find similar
Delta
Jul 11
ONT
Ontario
5h 20m
1 stop
SEA
Seattle/Tacoma Intl
$83
Find similar
Multiple Airlines
Aug 13
ONT
Ontario
7h 17m
1 stop
DFW
Dallas/Fort Worth
$72
Find similar
Alternative routes for Ontario to United States
Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
View more
Useful information for finding Ontario to United States flight deals
Learn about all of the flight booking features offered by momondo for free.
How do I get Price Alerts for flights from Ontario to United States?
Price Alerts will notify you by email when the price for flights to United States from Ontario decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Ontario to United States with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.