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Fresno

$63+ 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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FAT
ene. 3 — ene. 101
sáb. 1/3
sáb. 1/10
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 diciembre 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
mié. 12/176:15 amONT - FAT
1 stop7h 24mMultiple Airlines
jue. 12/189:40 amFAT - ONT
1 stop7h 42mMultiple Airlines
Deal found 12/2$147
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
mar. 12/306:17 pmONT - FAT
1 stop15h 08mMultiple Airlines
mar. 1/612:05 pmFAT - ONT
1 stop21h 45mMultiple Airlines
Deal found 12/2$170
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
lun. 12/296:00 pmONT - FAT
1 stop13h 45mMultiple Airlines
lun. 1/56:31 pmFAT - ONT
1 stop20h 38mMultiple Airlines
Deal found 12/1$171
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
jue. 12/256:00 amONT - FAT
1 stop6h 20mMultiple Airlines
jue. 12/255:31 pmFAT - ONT
1 stop3h 46mMultiple Airlines
Deal found 12/2$181
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
mar. 12/236:17 pmONT - FAT
1 stop15h 08mMultiple Airlines
jue. 12/255:31 pmFAT - ONT
1 stop3h 46mMultiple Airlines
Deal found 12/2$184
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
mar. 12/236:17 pmONT - FAT
1 stop15h 08mMultiple Airlines
mié. 12/245:27 pmFAT - ONT
1 stop3h 50mMultiple Airlines
Deal found 12/2$193
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
mié. 12/176:15 amONT - FAT
1 stop7h 24mMultiple Airlines
dom. 12/215:21 pmFAT - ONT
1 stop4h 06mMultiple Airlines
Deal found 12/2$194
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
lun. 12/226:00 pmONT - FAT
1 stop14h 45mMultiple Airlines
jue. 12/251:10 pmFAT - ONT
1 stop4h 12mMultiple Airlines
Deal found 12/2$211
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
sáb. 12/206:00 amONT - FAT
1 stop10h 17mMultiple Airlines
jue. 12/251:10 pmFAT - ONT
1 stop8h 07mMultiple Airlines
Deal found 12/2$217
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
lun. 12/226:00 pmONT - FAT
1 stop14h 45mMultiple Airlines
mié. 12/2410:15 amFAT - ONT
1 stop7h 00mMultiple Airlines
Deal found 12/2$220
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
mié. 12/246:00 amONT - FAT
1 stop10h 37mMultiple Airlines
jue. 12/255:31 pmFAT - ONT
1 stop3h 46mMultiple Airlines
Deal found 12/2$222

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 diciembre 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$147
(Kiwi.com)

One-way from

$63
(Trip.com)

Popular in

September

Cheapest in

July

Average price

$461
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
High demand for flights, 4% potential price rise
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 diciembre 4, 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

mié. 12/17

6:15 am-1:39 pm

1 stop7h 24m

Fresno Airterminal

jue. 12/18

9:40 am-5:22 pm

1 stop7h 42m

$147

OntarioFresno

ONT - FAT

ONTFAT

Ontario

lun. 12/29

6:00 pm-7:45 am

1 stop13h 45m

Fresno Airterminal

lun. 1/5

6:31 pm-3:09 pm

1 stop20h 38m

$171

OntarioFresno

ONT - FAT

ONTFAT

Ontario

vie. 1/16

10:18 pm-10:16 am

1 stop11h 58m

Fresno Airterminal

dom. 1/18

5:43 pm-7:37 am

1 stop13h 54m

$201

OntarioFresno

ONT - FAT

ONTFAT

Ontario

vie. 2/27

6:30 am-2:10 pm

1 stop7h 40m

Fresno Airterminal

dom. 3/1

6:35 pm-9:17 pm

1 stop26h 42m

$210

OntarioFresno

ONT - FAT

ONTFAT

Ontario

jue. 12/25

6:07 pm-7:45 am

1 stop13h 38m

Fresno Airterminal

lun. 12/29

6:31 pm-5:22 pm

1 stop22h 51m

$217

OntarioFresno

ONT - FAT

ONTFAT

Ontario

lun. 1/5

6:00 pm-11:15 am

1 stop17h 15m

Fresno Airterminal

jue. 1/8

5:43 pm-7:36 am

1 stop13h 53m

$218

OntarioFresno

ONT - FAT

ONTFAT

Ontario

lun. 1/12

12:10 pm-7:40 pm

2 stops7h 30m

Fresno Airterminal

mar. 1/13

3:10 pm-9:05 pm

2 stops5h 55m

$227

OntarioFresno

ONT - FAT

ONTFAT

Ontario

vie. 12/19

5:54 pm-11:15 am

1 stop17h 21m

Fresno Airterminal

sáb. 12/20

5:07 pm-11:13 pm

1 stop6h 06m

$237

OntarioFresno

ONT - FAT

ONTFAT

Ontario

jue. 12/25

6:07 pm-7:45 am

1 stop13h 38m

Fresno Airterminal

mar. 12/30

12:42 pm-5:22 pm

1 stop4h 40m

$239

OntarioFresno

ONT - FAT

ONTFAT

Ontario

mar. 1/20

6:30 am-2:30 pm

1 stop8h 00m

Fresno Airterminal

vie. 1/23

11:00 am-5:10 pm

1 stop6h 10m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 18 results
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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Fresno flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, July is the cheapest month in which you can book a flight from Ontario to Fresno (average of $58). Flying from Ontario to Fresno in May is currently the most expensive (average of $222). 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 diciembre 4, 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 12% 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 diciembre 4, 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
4,253 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

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
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

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
9,063 reviews
Southwest
8.0
Very good
4,253 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

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 $259. These flights start at 25% 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, July is the cheapest month in which you can book a flight from Ontario to Fresno (average of $58). Flying from Ontario to Fresno in May is currently the most expensive (average of $222). 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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Alternative routes for Ontario to Fresno

See prices for flight routes from nearby airports that may be better suited for you.
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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 diciembre 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$229Average$377FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$259Average$446FlexibilityNo cancel feeOn-time69%

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