Cheap flights from Ontario to the United States from $31
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to the United States departing on 8/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Below you can see the best fares for your round-trip flight route over the next six 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]()
Sep 17![Frontier]()
Sep 28
ONT1:32 pmOntario
1h 35m
SFO3:07 pmSan Francisco
SFO1:25 pmSan Francisco
1h 28m
ONT2:53 pmOntario
Frontier![Frontier]()
Aug 10![Frontier]()
Aug 13
ONT8:06 pmOntario
1h 17m
LAS9:23 pmLas Vegas Harry Reid Intl
LAS1:26 pmLas Vegas Harry Reid Intl
1h 08m
ONT2:34 pmOntario
Frontier![Frontier]()
Sep 17![Frontier]()
Sep 25
ONT1:32 pmOntario
1h 35m
SFO3:07 pmSan Francisco
SFO1:20 pmSan Francisco
1h 28m
ONT2:48 pmOntario
Frontier![Frontier]()
Aug 14![Frontier]()
Aug 14
ONT9:13 amOntario
1h 11m
LAS10:24 amLas Vegas Harry Reid Intl
LAS1:53 pmLas Vegas Harry Reid Intl
1h 08m
ONT3:01 pmOntario
Frontier![Frontier]()
Sep 18![Frontier]()
Sep 24
ONT3:48 pmOntario
1h 24m
SFO5:12 pmSan Francisco
SFO4:07 pmSan Francisco
1h 29m
ONT5:36 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
Find the cheapest direct flights from Ontario to the United States
Frontier![Frontier]()
Sep 17![Frontier]()
Sep 28
ONT1:32 pmOntario
1h 35m
SFO3:07 pmSan Francisco
SFO1:25 pmSan Francisco
1h 28m
ONT2:53 pmOntario
Frontier![Frontier]()
Aug 10![Frontier]()
Aug 13
ONT8:06 pmOntario
1h 17m
LAS9:23 pmLas Vegas Harry Reid Intl
LAS1:26 pmLas Vegas Harry Reid Intl
1h 08m
ONT2:34 pmOntario
Frontier![Frontier]()
Sep 17![Frontier]()
Sep 25
ONT1:32 pmOntario
1h 35m
SFO3:07 pmSan Francisco
SFO1:20 pmSan Francisco
1h 28m
ONT2:48 pmOntario
Frontier![Frontier]()
Aug 14![Frontier]()
Aug 14
ONT9:13 amOntario
1h 11m
LAS10:24 amLas Vegas Harry Reid Intl
LAS1:53 pmLas Vegas Harry Reid Intl
1h 08m
ONT3:01 pmOntario
Frontier![Frontier]()
Sep 18![Frontier]()
Sep 24
ONT3:48 pmOntario
1h 24m
SFO5:12 pmSan Francisco
SFO4:07 pmSan Francisco
1h 29m
ONT5:36 pmOntario
Search last-minute flights to United States from Ontario
Find and compare round-trip flight prices for your last-minute flight from Ontario to United States
Frontier![Frontier]()
Jul 30![Frontier]()
Aug 1
ONT10:30 pmOntario
1h 29m
LAS11:59 pmLas Vegas Harry Reid Intl
LAS9:49 amLas Vegas Harry Reid Intl
1h 08m
ONT10:57 amOntario
Frontier![Frontier]()
Jul 31![Frontier]()
Aug 4
ONT8:07 amOntario
1h 26m
SFO9:33 amSan Francisco
SFO5:45 amSan Francisco
1h 22m
ONT7:07 amOntario
Frontier![Frontier]()
Jul 30![Frontier]()
Aug 2
ONT8:07 amOntario
1h 26m
SFO9:33 amSan Francisco
SFO5:50 amSan Francisco
1h 22m
ONT7:12 amOntario
Frontier![Frontier]()
Aug 2![Frontier]()
Aug 7
ONT11:23 amOntario
1h 26m
SFO12:49 pmSan Francisco
SFO5:45 amSan Francisco
1h 22m
ONT7:07 amOntario
Frontier![Frontier]()
Aug 1![Frontier]()
Aug 6
ONT7:21 pmOntario
1h 14m
LAS8:35 pmLas Vegas Harry Reid Intl
LAS11:46 amLas Vegas Harry Reid Intl
1h 08m
ONT12:54 pmOntario
American Airlines flights from Ontario to United States
Our best American Airlines deals on Ontario to United States flight tickets
American Airlines![American Airlines]()
Sep 20![American Airlines]()
Sep 24
ONT5:01 pmOntario
5h 32m
1 stop
SFO10:33 pmSan Francisco
SFO12:10 pmSan Francisco
6h 18m
1 stop
ONT6:28 pmOntario
American Airlines![American Airlines]()
Oct 31![American Airlines]()
Nov 2
ONT10:56 amOntario
9h 00m
1 stop
EWR10:56 pmNewark
EWR3:26 pmNewark
7h 47m
1 stop
ONT8:13 pmOntario
JetBlue flights from Ontario to United States
Our best JetBlue deals on Ontario to United States flight tickets
JetBlue![JetBlue]()
Sep 7![JetBlue]()
Sep 11
ONT11:35 pmOntario
5h 24m
JFK7:59 amNew York John F Kennedy Intl
JFK6:59 pmNew York John F Kennedy Intl
6h 06m
ONT10:05 pmOntario
JetBlue![JetBlue]()
Aug 4![JetBlue]()
Sep 3
ONT11:47 pmOntario
5h 23m
JFK8:10 amNew York John F Kennedy Intl
JFK7:30 pmNew York John F Kennedy Intl
5h 58m
ONT10:28 pmOntario
How to get the cheapest flight ticket from Ontario to United States
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest airline that flies to United States from Ontario?
Ravn Alaska. Ravn Alaska, Spirit Airlines, and Breeze Airways are the most popular carriers operating from Ontario to United States
What is the cheapest Ontario to United States flight route?
Ontario - Las Vegas Harry Reid Intl. Fly from Ontario to Las Vegas Harry Reid Intl for the best Ontario - United States flight prices
What cabin class options are available on Ontario to United States flights?
There are 4 cabin classes available to choose from on Ontario to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Ontario to United States flights?
No. A direct flight is the cheapest option for a flight between Ontario to United States.
Cheap Ontario to United States flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to United States
Best Price Found | $31 |
|---|---|
Fastest flight time | 1h 11m |
Direct flights | Every day |
Airports in United States | 5 airports |
When did momondo last update prices for flights from Ontario Airport to United States?
Prices for flights from Ontario Airport to United States refresh daily.
How many operators does momondo search for flights from Ontario Airport to United States?
As of July 2024, there are 11 operators available to choose from for flights from Ontario Airport to United States.
How old do you have to be to fly from Ontario Airport to United States?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario Airport to United States.
What documentation or ID do you need to fly to United States?
The necessary travel and health documents for your United States trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Ontario to United States
Compare and see reviews for airlines that fly from Ontario to United States with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $34 | Free Cancellation | Rating 8.1 85 reviews | |||
| PriceFrom $35 | Free Cancellation | Rating 8.0 9,365 reviews | |||
| PriceFrom $36 | Free Cancellation | Rating 6.3 8,407 reviews | |||
| PriceFrom $38 | Free Cancellation | Rating 6.2 3,835 reviews | |||
| PriceFrom $39 | Free Cancellation | Rating 7.6 3,996 reviews | |||
| PriceFrom $52 | Free Cancellation | Rating 8.0 9,630 reviews | |||
| PriceFrom $69 | Free Cancellation | Rating 8.8 12 reviews | |||
| PriceFrom $89 | Free Cancellation | Rating 7.4 10,000 reviews | |||
| PriceFrom $158 | Free Cancellation | Rating 7.3 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to United States?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to United States for you.
Can I find flights from Ontario to United States with flexible booking policies on momondo?
Yes. All flights to United States from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Ontario to United States?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to United States from Ontario.
I’m not ready to book a flight from Ontario to United States right now. Can momondo alert me if prices change?
If you are simply researching potential flights to United States, momondo offers a useful price alert feature which will track prices for flights to United States from Ontario and alert you when they change.
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Find better results for your trip to the United States
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