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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 | $82 | The best flight deal from Ontario to United States found on momondo in the last 72 hours is $82 | |
| Fastest flight time | 1h 8m | The fastest flight from Ontario to United States takes 1h 8m. | |
| 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 - Dallas/Fort Worth and Ontario - Houston Hobby. |
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
Nov 7
ONT
Ontario
5h 51m
1 stop
PHX
Phoenix Sky Harbor Intl
Nov 10
PHX
Phoenix Sky Harbor Intl
1h 21m
ONT
Ontario
$82
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Multiple Airlines
Oct 31
ONT
Ontario
2h 18m
DEN
Denver Intl
Nov 7
DEN
Denver Intl
2h 25m
ONT
Ontario
$92
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Multiple Airlines
Nov 21
ONT
Ontario
2h 16m
DEN
Denver Intl
Dec 2
DEN
Denver Intl
2h 18m
ONT
Ontario
$107
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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
Nov 4
ONT
Ontario
25h 46m
3 stops
ATL
Atlanta Hartsfield-Jackson
$70
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Delta
Oct 31
ONT
Ontario
2h 42m
SEA
Seattle/Tacoma Intl
$75
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Multiple Airlines
Oct 26
ONT
Ontario
27h 02m
2 stops
ATL
Atlanta Hartsfield-Jackson
$71
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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.