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Fresno

$133+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FAT
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$194
(Kiwi.com)

One-way from

$133
(United Airlines)

Popular in

September

Cheapest in

July

Average price

$527
From Ontario to Fresno Airterminal
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One-way flight from Ontario to Fresno Airterminal
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Highest demand for flights based on searches. 5% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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 9/2610:28 pmONT - FAT
1 stop16h 04mMultiple Airlines
Sun 9/289:58 pmFAT - ONT
1 stop9h 19mMultiple Airlines
Deal found 9/15$192
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 9/278:00 amONT - FAT
1 stop6h 32mMultiple Airlines
Sun 9/289:58 pmFAT - ONT
1 stop9h 19mMultiple Airlines
Deal found 9/16$194
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 9/256:00 amONT - FAT
1 stop26h 19mMultiple Airlines
Sat 9/273:22 pmFAT - ONT
1 stop6h 34mMultiple Airlines
Deal found 9/16$209
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Wed 10/18:00 amONT - FAT
1 stop5h 42mMultiple Airlines
Sun 10/510:17 pmFAT - ONT
1 stop9h 00mMultiple Airlines
Deal found 9/16$213
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 9/278:00 amONT - FAT
1 stop6h 32mMultiple Airlines
Mon 9/2910:39 amFAT - ONT
1 stop10h 17mMultiple Airlines
Deal found 9/15$214
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/1610:05 amONT - FAT
1 stop11h 22mMultiple Airlines
Mon 10/206:26 pmFAT - ONT
1 stop26h 16mMultiple Airlines
Deal found 9/16$217
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/48:00 amONT - FAT
1 stop6h 29mMultiple Airlines
Sun 10/510:17 pmFAT - ONT
1 stop9h 00mMultiple Airlines
Deal found 9/15$218
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 11/146:00 amONT - FAT
1 stop11h 33mMultiple Airlines
Sun 11/1610:24 pmFAT - ONT
1 stop14h 27mMultiple Airlines
Deal found 9/14$219
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/176:05 amONT - FAT
1 stop8h 23mMultiple Airlines
Sun 10/1910:17 pmFAT - ONT
1 stop9h 30mMultiple Airlines
Deal found 9/15$224
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/1310:47 pmONT - FAT
1 stop11h 30mMultiple Airlines
Wed 10/152:32 pmFAT - ONT
1 stop6h 10mMultiple Airlines
Deal found 9/15$229
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 10/146:36 pmONT - FAT
1 stop5h 08mUnited Airlines
Tue 10/216:08 pmFAT - ONT
1 stop4h 44mUnited Airlines
Deal found 9/16$237

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 September 17, 2025.
Use the filters below to find and compare flights from Ontario to Fresno that are best for you.

Fly from

Ontario

Fly to

Fresno

Route

Depart

Return

Price

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Thu 9/25

6:00 am-8:19 am

1 stop26h 19m

Fresno Airterminal

Sat 9/27

3:22 pm-9:56 pm

1 stop6h 34m

$209

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Wed 10/1

8:00 am-1:42 pm

1 stop5h 42m

Fresno Airterminal

Sun 10/5

10:17 pm-7:17 am

1 stop9h 00m

$213

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sat 9/27

8:00 am-2:32 pm

1 stop6h 32m

Fresno Airterminal

Mon 9/29

10:39 am-8:56 pm

1 stop10h 17m

$214

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sat 11/15

8:00 am-2:26 pm

1 stop6h 26m

Fresno Airterminal

Sun 11/16

10:24 pm-7:17 am

1 stop8h 53m

$217

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Fri 10/17

6:05 am-2:28 pm

1 stop8h 23m

Fresno Airterminal

Sun 10/26

10:17 pm-7:47 am

1 stop9h 30m

$228

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sat 10/18

6:36 pm-11:44 pm

1 stop5h 08m

Fresno Airterminal

Wed 10/22

6:08 pm-10:52 pm

1 stop4h 44m

$251

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Wed 9/24

8:00 am-9:24 am

1 stop25h 24m

Fresno Airterminal

Fri 9/26

6:22 pm-12:43 pm

1 stop18h 21m

$256

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Thu 10/30

10:05 am-7:16 am

1 stop21h 11m

Fresno Airterminal

Tue 11/4

11:07 am-11:50 pm

2 stops36h 43m

$258

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Thu 10/9

6:36 pm-9:54 pm

1 stop3h 18m

Fresno Airterminal

Mon 10/13

8:31 am-12:13 pm

1 stop3h 42m

$265

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sat 10/18

1:00 pm-8:10 pm

2 stops7h 10m

Fresno Airterminal

Wed 10/22

10:15 am-3:35 pm

1 stop5h 20m

$283

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 23 results
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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, January is the cheapest month in which you can book a flight from Ontario to Fresno (average of $363). Flying from Ontario to Fresno in June is currently the most expensive (average of $445). 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.

What is the cheapest time of day to fly from ONT to FAT?

Find hourly flight availability from Ontario to Fresno. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Fresno in the morning. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight at noon.

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 September 17, 2025.
Peruse reviews from past customers who have flown with Southwest and United Airlines 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
4,242 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

  • What are the cheapest airlines flying from Ontario to Fresno round-trip?

    Currently priced at $229, Southwest will fly you from Ontario to Fresno and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $239. These flights start at 28% lower than the current average price 3 months from now.

  • 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, January is the cheapest month in which you can book a flight from Ontario to Fresno (average of $363). Flying from Ontario to Fresno in June is currently the most expensive (average of $445). 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

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Top 2 airlines flying from Ontario to Fresno

Discover the top 2 airlines that operate flights from Ontario to Fresno. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$229Average$351FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$239Average$474FlexibilityNo cancel feeOn-time69%

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