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Fresno

$122+ 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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FAT
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
1 adult, Economy
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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 March 23, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/20. 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 4/147:44 pm
ONT
-
FAT
1 stop16h 33m
Multiple Airlines
Thu 4/1610:24 pm
FAT
-
ONT
1 stop10h 00m
Multiple Airlines
Deal found 3/20$226
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 5/118:44 am
ONT
-
FAT
1 stop5h 07m
Multiple Airlines
Sat 5/1612:07 pm
FAT
-
ONT
1 stop7h 25m
Multiple Airlines
Deal found 3/20$243
This Kiwi.com deal was found by Cheapflights users on 3/20. 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
Wed 6/1010:36 am
FAT
-
ONT
1 stop4h 33m
Multiple Airlines
Deal found 3/20$248
This Southwest deal was found by Cheapflights users on 3/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:30 am
ONT
-
FAT
1 stop5h 35m
Southwest
Tue 5/125:30 am
FAT
-
ONT
1 stop6h 05m
Southwest
Deal found 3/23$251
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 5/88:44 am
ONT
-
FAT
1 stop6h 20m
Multiple Airlines
Sun 5/1010:24 pm
FAT
-
ONT
1 stop21h 08m
Multiple Airlines
Deal found 3/18$254
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 5/124:39 pm
ONT
-
FAT
1 stop19h 38m
Multiple Airlines
Sun 5/1710:24 pm
FAT
-
ONT
1 stop9h 25m
Multiple Airlines
Deal found 3/22$288
This Southwest deal was found by Cheapflights users on 3/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/23:45 pm
ONT
-
FAT
2 stops5h 55m
Southwest
Wed 6/105:10 pm
FAT
-
ONT
2 stops5h 50m
Southwest
Deal found 3/20$297
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 5/124:39 pm
ONT
-
FAT
1 stop19h 38m
Multiple Airlines
Wed 5/2010:35 am
FAT
-
ONT
1 stop5h 09m
Multiple Airlines
Deal found 3/22$298

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 March 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$226
(Kiwi.com)

One-way from

$122
(Kiwi.com)

Popular in

September

Cheapest in

July

Average price

$321
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. 12% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 23, 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

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Fri 5/15

3:00 pm-10:10 pm

2 stops7h 10m

Fresno Airterminal

Tue 5/19

5:30 am-9:50 am

1 stop4h 20m

$352

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sat 5/16

3:35 pm-9:10 pm

1 stop5h 35m

Fresno Airterminal

Sun 5/17

5:25 pm-12:05 am

2 stops6h 40m

$362

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Fri 5/1

7:59 pm-1:39 pm

1 stop17h 40m

Fresno Airterminal

Sun 5/3

2:33 pm-9:45 am

1 stop19h 12m

$365

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Wed 5/6

1:30 pm-6:02 pm

1 stop4h 32m

Fresno Airterminal

Sat 5/9

2:15 pm-5:52 pm

1 stop3h 37m

$369

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Thu 4/23

1:27 pm-6:19 pm

1 stop4h 52m

Fresno Airterminal

Thu 4/30

2:15 pm-5:52 pm

1 stop3h 37m

$371

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Mon 5/11

1:30 pm-6:02 pm

1 stop4h 32m

Fresno Airterminal

Thu 5/21

6:30 am-12:12 pm

1 stop5h 42m

$389

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Thu 4/23

1:27 pm-6:19 pm

1 stop4h 52m

Fresno Airterminal

Sun 4/26

7:18 am-12:20 pm

1 stop5h 02m

$399

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sun 6/14

2:35 pm-7:25 pm

1 stop4h 50m

Fresno Airterminal

Fri 6/19

5:35 pm-11:30 pm

2 stops5h 55m

$402

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Fri 5/1

1:40 pm-8:59 pm

1 stop7h 19m

Fresno Airterminal

Sun 5/3

6:05 am-9:41 am

1 stop3h 36m

$407

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Fri 8/21

8:00 am-1:28 pm

1 stop5h 28m

Fresno Airterminal

Sun 8/23

5:00 am-12:38 pm

1 stop7h 38m

$417

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 March.
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

What is the cheapest month to book a flight from Ontario to Fresno?

Currently, November is the cheapest month in which you can book a flight from Ontario to Fresno (average of $57). Flying from Ontario to Fresno in May is currently the most expensive (average of $241). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Fresno

Get insights into the airlines that provide service to Fresno. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Fresno. Reviews last updated March 23, 2026.
Peruse reviews from past customers who have flown with Southwest from Ontario to Fresno to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,324 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,324 reviews
Southwest
8.0
Very good
4,324 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 4h 32m. Southwest provides one of the quickest options available for as low as $369. 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.

  • What is the cheapest month to book a flight from Ontario to Fresno?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Fresno (average of $57). Flying from Ontario to Fresno in May is currently the most expensive (average of $241). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Fresno?

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

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