HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Fresno

$76+ Cheap flights from Ontario to Fresno (ONT - FAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FAT
Jun 3 — Jun 101
Wed 6/3
Wed 6/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Fresno with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Fresno

Cheapest flights from Ontario to Fresno
Explore the most affordable flight options available from Ontario to Fresno. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/13:30 pm
ONT
-
FAT
1 stop21h 45m
Multiple Airlines
Mon 6/83:31 pm
FAT
-
ONT
1 stop4h 01m
Multiple Airlines
Deal found 5/4$168
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2811:51 am
ONT
-
FAT
1 stop26h 56m
Multiple Airlines
Thu 6/43:31 pm
FAT
-
ONT
1 stop4h 01m
Multiple Airlines
Deal found 4/30$173
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:39 pm
ONT
-
FAT
1 stop17h 07m
Multiple Airlines
Sat 6/62:06 pm
FAT
-
ONT
1 stop5h 26m
Multiple Airlines
Deal found 4/29$175
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/63:30 pm
ONT
-
FAT
1 stop26h 30m
Multiple Airlines
Tue 6/92:06 pm
FAT
-
ONT
1 stop5h 45m
Multiple Airlines
Deal found 5/1$213
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/223:30 pm
ONT
-
FAT
1 stop21h 45m
Multiple Airlines
Mon 5/256:20 pm
FAT
-
ONT
1 stop13h 44m
Multiple Airlines
Deal found 4/30$244
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:39 pm
ONT
-
FAT
1 stop17h 06m
Multiple Airlines
Mon 5/253:37 pm
FAT
-
ONT
1 stop24h 07m
Multiple Airlines
Deal found 5/4$269
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/81:50 pm
ONT
-
FAT
1 stop3h 38m
United Airlines
Tue 6/96:40 pm
FAT
-
ONT
1 stop3h 57m
United Airlines
Deal found 4/30$299
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/133:34 pm
ONT
-
FAT
1 stop20h 42m
Multiple Airlines
Sun 6/143:31 pm
FAT
-
ONT
1 stop4h 20m
Multiple Airlines
Deal found 5/1$301

Find flight deals from Ontario to Fresno

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Fresno (FAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$168
(Kiwi.com)

One-way from

$76
(Kiwi.com)

Popular in

September

Cheapest in

July

Average price

$310
Provider with most accurate pricing for Ontario-Fresno Airterminal flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Fresno Airterminal flights.
Search Deals
From Ontario to Fresno Airterminal
Search Deals
One-way flight from Ontario to Fresno Airterminal
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Fresno that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 4, 2026.
Use the filters below to find and compare flights from Ontario to Fresno that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Mon 6/8

1:50 pm-5:28 pm

1 stop3h 38m

Fresno Airterminal

Tue 6/9

6:40 pm-10:37 pm

1 stop3h 57m

$299

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Tue 6/2

5:45 am-11:55 am

2 stops6h 10m

Fresno Airterminal

Tue 6/2

5:30 pm-10:15 pm

1 stop4h 45m

$322

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sat 6/6

3:50 pm-11:00 pm

2 stops7h 10m

Fresno Airterminal

Tue 6/9

2:35 pm-10:05 pm

2 stops7h 30m

$337

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sat 5/23

12:50 pm-8:05 pm

2 stops7h 15m

Fresno Airterminal

Thu 5/28

5:15 am-11:20 am

1 stop6h 05m

$351

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sat 6/13

3:00 pm-9:30 pm

2 stops6h 30m

Fresno Airterminal

Sun 6/14

1:15 pm-6:20 pm

1 stop5h 05m

$352

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Mon 6/1

3:35 pm-10:10 pm

2 stops6h 35m

Fresno Airterminal

Mon 6/8

4:35 pm-12:05 am

2 stops7h 30m

$356

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Wed 5/27

6:00 am-9:39 am

1 stop3h 39m

Fresno Airterminal

Wed 6/3

5:00 am-12:47 pm

1 stop7h 47m

$357

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Thu 5/21

6:00 am-9:39 am

1 stop3h 39m

Fresno Airterminal

Sat 5/23

6:40 pm-10:50 pm

1 stop4h 10m

$367

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Wed 7/1

6:00 am-9:39 am

1 stop3h 39m

Fresno Airterminal

Mon 7/6

6:30 am-12:12 pm

1 stop5h 42m

$387
Cheapest one-way

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sun 6/7

3:30 pm-1:17 pm

1 stop21h 47m

$140

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Ontario to Fresno

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Fresno in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Fresno flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Fresno flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Fresno flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Fresno flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Fresno flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Fresno

Have a flexible travel schedule? Discover the best time to fly to Fresno from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Fresno

How much does it cost to fly round-trip from Ontario to Fresno?

Related info for your journey

Find useful and relevant information for your journey from Ontario to Fresno. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Fresno?

    A quick flight from Ontario to Fresno can take about 3h 38m. United Airlines provides one of the quickest options available for as low as $299. Ontario and Fresno are separated by a distance of 222 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Ontario to Fresno that include hotel bookings?

    Yes. In addition to deals on Ontario to Fresno flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Fresno?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Fresno.

  • Can I find deals for business class flights from Ontario to Fresno?

    Yes. Cheapflights offers flight deals from Ontario to Fresno by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Fresno?

Book flights to Fresno if you plan to visit one of these locations
Clovis
Madera
Kingsburg
Bass Lake

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Fresno

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to Las Vegas flights
Los Angeles to Las Vegas flights
San Francisco to Los Angeles flights
Los Angeles to San Francisco flights
San Francisco to Santa Ana flights
Santa Ana to Las Vegas flights
Burbank to Las Vegas flights
San Jose to Los Angeles flights
Ontario to San Francisco flights
San Jose to Las Vegas flights
San Francisco to San Diego flights
Santa Ana to San Francisco flights
San Diego to Las Vegas flights
San Francisco to Ontario flights
Ontario to Las Vegas flights
Los Angeles to San Jose flights
Sacramento to Las Vegas flights
San Francisco to Burbank flights
San Diego to San Francisco flights
San Jose to San Diego flights
Los Angeles to Sacramento flights
San Jose to Ontario flights
Oakland to Las Vegas flights
San Francisco to Palm Springs flights
Sacramento to Los Angeles flights
San Jose to Santa Ana flights
Las Vegas to San Francisco flights
Ontario to San Jose flights
Burbank to San Francisco flights
Las Vegas to Los Angeles flights
Los Angeles to Reno flights
Fresno to Las Vegas flights
Stockton to Las Vegas flights
Long Beach to Las Vegas flights
Sacramento to San Diego flights
San Diego to San Jose flights
Los Angeles to Oakland flights
Sacramento to Ontario flights
Burbank to San Jose flights
Ontario to Sacramento flights
Las Vegas to San Diego flights
Reno to Las Vegas flights
Santa Rosa to Las Vegas flights
Santa Ana to San Jose flights
Las Vegas to Ontario flights
Las Vegas to Santa Ana flights
Oakland to San Diego flights
Las Vegas to Burbank flights
Ontario to Reno flights
Santa Rosa to Los Angeles flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.