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Cheap flights from Ontario (ONT) to USA

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How to find the cheapest flight from
Ontario (ONT) to USA

How far in advance should I book a flight from Ontario to USA?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 56 days in advance, which can save you up to 10% on flights from Ontario to USA compared to booking the week you need them. Waiting 56 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $302. For sooner than that we have options available in the next 3 days from $331.

What is the cheapest month to fly from Ontario to USA?

Our data shows that February tends to be the cheapest month to fly to USA from Ontario. Users have commonly found prices around $296 for the month, but tickets can be as low as $139. Due to multiple factors, prepare for potentially higher prices in July.

Cheap flights from Ontario to USA in July, August 2020

The best prices found for ONT to USA flights for July, August
8 Jul - 12 Jul
$161pp
ONT
Ontario
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
American Airlines
 
1 STOP
ONT
Ontario
8 Jul - 11 Jul
$161pp
ONT
Ontario
Multiple Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
ONT
Ontario
4 Jul - 11 Jul
$166pp
ONT
Ontario
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
ONT
Ontario

Ontario to USA 2020 flight deals

Cheap flights to USA from Ontario found for this year
17 Aug - 19 Aug
$133pp
ONT
Ontario
Multiple Airlines
 
1 STOP
DFW
Dallas/Fort Worth
DFW
Dallas/Fort Worth
Multiple Airlines
 
1 STOP
ONT
Ontario
17 Aug - 24 Aug
$139pp
ONT
Ontario
Multiple Airlines
 
1 STOP
DFW
Dallas/Fort Worth
DFW
Dallas/Fort Worth
Multiple Airlines
 
1 STOP
ONT
Ontario
17 Aug - 22 Aug
$145pp
ONT
Ontario
Multiple Airlines
 
1 STOP
DFW
Dallas/Fort Worth
DFW
Dallas/Fort Worth
Multiple Airlines
 
1 STOP
ONT
Ontario

Non-stop flights to USA from Ontario

Save time with Ontario to USA direct flight deals
30 Jun - 7 Jul
$167pp
ONT
Ontario
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
ONT
Ontario
30 Jul - 2 Aug
$177pp
ONT
Ontario
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
ONT
Ontario
1 Jul - 15 Jul
$179pp
ONT
Ontario
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
ONT
Ontario

Last minute flights from Ontario to USA

Late deals on round-trip flights to USA from Ontario, departing today and this week
27 Jun - 4 Jul
$171pp
ONT
Ontario
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
American Airlines
 
1 STOP
ONT
Ontario
27 Jun - 7 Jul
$213pp
ONT
Ontario
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
ONT
Ontario
27 Jun - 4 Jul
$214pp
ONT
Ontario
Multiple Airlines
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
United Airlines
Non-Stop
ONT
Ontario

One-way flights to USA from Ontario

The cheapest one-way flights from Ontario to USA
4:50 pm - 5:50 pm
Multiple Airlines
1 Stop
23h 00m
ONT - DFW
Multiple Airlines
$70
Kiwi.com
9:40 am - 3:00 pm
Delta
1 Stop
5h 20m
ONT - SEA
Delta
$83
Delta
4:50 pm - 2:13 am
Multiple Airlines
1 Stop
7h 23m
ONT - DFW
Multiple Airlines
$85
FlightNetwork

Related info for your journey

Useful info, stats and facts about Ontario to USA flights.

Flight FAQs

From Ontario to USA

Are flight prices decreasing from Ontario to USA due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Ontario and USA for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Ontario to USA for under $200 on Cheapflights?

Yes, there are multiple flights from Ontario to USA for under $200. The cheapest flight booked recently is on Multiple Airlines for just $133, but on average you can expect to pay $161.

Are there nonstop flights from Ontario to USA for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Ontario to USA under $200. A good price for a nonstop flight from Ontario to USA is less than $222.

Are there last-minute flights available from Ontario to USA for under $200?

There are currently 20+ open flights from Ontario to USA within the next 7 days for less than $200.

How popular is this flight route?

Within the past month, 3,130 users have taken a look at flights from Ontario to United States.

What are the most popular airlines that fly from Ontario to USA?

Consider American Airlines, Linear Air Taxi or United Airlines when booking your flight. These represent the most popular airlines when flying from Ontario to USA.

What are the most popular routes from Ontario to USA?

Most travelers choose Ontario - Seattle/Tacoma Intl, Ontario - Las Vegas McCarran or Ontario - Dallas/Fort Worth when deciding on the best route from Ontario to USA.

What are the cheapest Flights from Ontario to USA?

While on average a flight from Ontario to USA is generally $591, our data shows the cheapest flight currently is $331. When looking at the most popular route, (Ontario - Seattle/Tacoma Intl), you can expect to pay $118 for that flight.

Arrival points for flights from Ontario to USA

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Destination information for USA

Things to know before you go. Useful info for your trip from Ontario to USA
Flight duration
5h 51m

Airports servicing Ontario