$126 Cheap Flights from Fresno (FAT) to Ontario (ONT)

View $126 flight on Tue, Jan 6, 2026Opens in a new window

Popular airlines from Fresno Yosemite Intl. Airport (FAT) to Los Angeles - Ontario Intl. Airport (ONT)

Cheap Flights from Fresno to Ontario (FAT-ONT)

Prices were available within the past 7 days and start at $126 for one-way flights and $216 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Dec 9 - Sat, Dec 13
FAT
Fresno
ONT
Ontario
$216 Roundtrip, found 6 days ago
$216
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Tue, Dec 9 from Fresno to Ontario, returning Sat, Dec 13, priced at $216 found 6 days ago
Southwest Airlines
Thu, Dec 11 - Sat, Dec 13
FAT
Fresno
ONT
Ontario
$230 Roundtrip, found 6 days ago
$230
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Thu, Dec 11 from Fresno to Ontario, returning Sat, Dec 13, priced at $230 found 6 days ago
Southwest Airlines
Tue, Jan 6 - Sat, Jan 17
FAT
Fresno
ONT
Ontario
$234 Roundtrip, found 5 days ago
$234
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, Jan 6 from Fresno to Ontario, returning Sat, Jan 17, priced at $234 found 5 days ago
Southwest Airlines
Tue, Dec 9 - Sat, Dec 13
FAT
Fresno
ONT
Ontario
$252 Roundtrip, found 6 days ago
$252
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Tue, Dec 9 from Fresno to Ontario, returning Sat, Dec 13, priced at $252 found 6 days ago
Southwest Airlines
Wed, Jan 7 - Fri, Jan 30
FAT
Fresno
ONT
Ontario
$258 Roundtrip, found 5 days ago
$258
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Wed, Jan 7 from Fresno to Ontario, returning Fri, Jan 30, priced at $258 found 5 days ago
United
Mon, Feb 2 - Thu, Feb 5
FAT
Fresno
ONT
Ontario
$265 Roundtrip, found 21 hours ago
$265
Roundtrip
found 21 hours ago
Select United flight, departing Mon, Feb 2 from Fresno to Ontario, returning Thu, Feb 5, priced at $265 found 21 hours ago
Southwest Airlines
Thu, Dec 11 - Sat, Dec 13
FAT
Fresno
ONT
Ontario
$269 Roundtrip, found 6 days ago
$269
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Thu, Dec 11 from Fresno to Ontario, returning Sat, Dec 13, priced at $269 found 6 days ago
Alaska Airlines
Thu, Dec 11 - Sat, Dec 13
FAT
Fresno
ONT
Ontario
$296 Roundtrip, found 6 days ago
$296
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Dec 11 from Fresno to Ontario, returning Sat, Dec 13, priced at $296 found 6 days ago
Hawaiian Airlines
Tue, Dec 9 - Tue, Dec 16
FAT
Fresno
ONT
Ontario
$304 Roundtrip, found 6 days ago
$304
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Dec 9 from Fresno to Ontario, returning Tue, Dec 16, priced at $304 found 6 days ago
Delta
Wed, May 20 - Sun, May 24
FAT
Fresno
ONT
Ontario
$547 Roundtrip, found 6 hours ago
$547
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, May 20 from Fresno to Ontario, returning Sun, May 24, priced at $547 found 6 hours ago

Find the cheapest month to fly from Fresno (FAT) to Ontario (ONT)

September is typically the cheapest month to fly

From $185 - $596 per traveler.

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John Wayne SNA. Cheapest option available. Average driving time to city center is 42 minutes. Flights from $439
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $439
Flights from Fresno (FAT) to Ontario (ONT)
Origin airport
Fresno Yosemite Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$216
Distance
222 mi

Fresno to Ontario Flights

The cheapest times to fly from Fresno to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Fresno to Ontario are during the month of December. You can find some of the cheapest flights from Fresno to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Fresno to Ontario

Sunday is one of the best days to book for cheap flights from Fresno to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Fresno to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Fresno to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $126 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Fresno to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Fresno to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Fresno Yosemite Intl. Airport (FAT) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Get a cheap one-way flight from $126 or cheap return flight from $216 from Fresno Yosemite Intl. Airport (FAT) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Fresno Yosemite Intl. Airport (FAT) to Los Angeles - Ontario Intl. Airport (ONT)?
Planning your getaway for December is a good way to save, as it's the cheapest month for flights between FAT and ONT. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Fresno Yosemite Intl. Airport (FAT) to Los Angeles - Ontario Intl. Airport (ONT)?
To find the cheapest airline that'll fly you from FAT to ONT, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Fresno Yosemite Intl. Airport (FAT) to Los Angeles - Ontario Intl. Airport (ONT)?
Direct flights from Fresno Yosemite Intl. Airport (FAT) to Los Angeles - Ontario Intl. Airport (ONT) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from FAT to ONT?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on a number of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Fresno Yosemite Intl. Airport (FAT) to Los Angeles - Ontario Intl. Airport (ONT)?
Opt for a flight from Fresno Yosemite Intl. Airport (FAT) to Los Angeles - Ontario Intl. Airport (ONT) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Ontario from Fresno Yosemite Intl. Airport (FAT)?
Los Angeles Intl. Airport (LAX) is the only airport in Ontario with direct flights from Fresno Yosemite Intl. Airport (FAT). Browse the options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Fresno Yosemite Intl. Airport (FAT) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute fares from FAT to ONT are usually more expensive. For the best prices, start looking for flights as soon as possible. That being said, if you're flexible with your travel plans, it's possible to find a cheap ticket right before you leave.
Is it cheaper to book a FAT to ONT flight and hotel package?
You'll typically save money by booking a FAT to ONT flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your preferred flights and accommodations, consider adding extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Fresno Yosemite Intl. Airport (FAT) to Los Angeles - Ontario Intl. Airport (ONT)?
It's generally possible to cancel or reschedule your FAT to ONT flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.