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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
| Fastest flight time | 1h 2m | The fastest flight from Ontario to United States takes 1h 2m |
| 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 - Newark. |
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
Frontier![Frontier]()
May 24![Frontier]()
May 26
ONT12:41 pmOntario
1h 02m
LAS1:43 pmLas Vegas McCarran
LAS9:36 amLas Vegas McCarran
1h 04m
ONT10:40 amOntario
Frontier![Frontier]()
May 24![Frontier]()
May 25
ONT12:41 pmOntario
1h 02m
LAS1:43 pmLas Vegas McCarran
LAS11:01 amLas Vegas McCarran
1h 04m
ONT12:05 pmOntario
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 Frontier
Best airlines flying from Ontario to United States
Compare and see reviews for airlines that fly from Ontario to United States with momondo
AirlineFree CancellationPrice
PriceFrom $28
Free Cancellation
Reviews
Cons: Everything is ok
1 / 10
PriceFrom $43
Free Cancellation
Reviews
Pros: Accommodated to an earlier flight without questions asked.
Cons: Always been a delight!
1 / 10
PriceFrom $48
Free Cancellation
Reviews
Pros: everything
Cons: nono
1 / 10
PriceFrom $49
Free Cancellation
Reviews
Cons: Todo fue Exelente...
1 / 10
PriceFrom $52
Free Cancellation
Reviews
Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.
1 / 10
PriceFrom $62
Free Cancellation
Reviews
Cons: Too many of the passengers were out of control
1 / 10
PriceFrom $71
Free Cancellation
Reviews
Pros: Yes made sure mask was in place
Cons: No
1 / 10
PriceFrom $154
Free Cancellation
Reviews
Pros: The plane was new and the seats were nice.
1 / 10
Which airlines flying from Ontario to United States have COVID-19 safety policies in place?
Airlines such as Alaska Airlines have taken additional precautions to make sure you’re safer while traveling. Airlines flying from Ontario to United States are working to protect travelers. Some of these new policies include temperature checks, pre-flight testing, sanitization of key touchpoints, as well as mask requirements when onboard. Some airlines have even implemented socially distanced seating for a limited time. Policies will vary by airline.
Are airlines flying from Ontario to United States offering flexible cancellation due to COVID-19?
To ease the stress of booking flights, some of our airline partners flying from Ontario to United States are responding to the global pandemic. The following airlines may have a flexible cancellation policy to help accommodate travelers: Alaska Airlines, American Airlines, and United Airlines.
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.