What is the cheapest airline that flies from Fresno Airterminal to Ontario?

United Airlines and Southwest are the most popular carriers operating from Fresno Airterminal to Ontario

When did momondo last update prices for flights from Fresno Airterminal Airport to Ontario Airport?

Prices for flights from Fresno Airterminal Airport to Ontario Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Fresno Airterminal Airport to Ontario Airport?

There are 2 operators available for flights from Fresno Airterminal Airport to Ontario Airport as of December 2025.

How old do you have to be to fly from Fresno Airterminal Airport to Ontario Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Fresno Airterminal Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$106 Cheap Flights from Fresno to Ontario in 2025/26

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6:09 pm - 10:09 am

FAT

ONT

16h 00m1 stop

3:07 pm - 2:37 pm

ONT

FAT

23h 30m1 stop

$172Multiple Airlines

Wed, Jan 21 - Wed, Jan 28

9:18 pm - 1:37 pm

FAT

ONT

16h 19m1 stop

3:22 pm - 8:28 pm

ONT

FAT

5h 06m1 stop

$173Multiple Airlines

Mon, Jan 26 - Mon, Feb 2

6:09 pm - 10:09 am

FAT

ONT

16h 00m1 stop

2:28 pm - 8:45 pm

ONT

FAT

6h 17m1 stop

$178Multiple Airlines

Wed, Jan 21 - Fri, Jan 23

6:09 pm - 1:11 pm

FAT

ONT

19h 02m1 stop

3:22 pm - 8:28 pm

ONT

FAT

5h 06m1 stop

$189Multiple Airlines

Wed, Jan 21 - Mon, Jan 26

6:09 pm - 10:09 am

FAT

ONT

16h 00m1 stop

3:07 pm - 5:19 pm

ONT

FAT

26h 12m1 stop

$194Multiple Airlines

Wed, Jan 21 - Tue, Jan 27

6:09 pm - 10:09 am

FAT

ONT

16h 00m1 stop

8:27 pm - 2:42 pm

ONT

FAT

18h 15m1 stop

$208Multiple Airlines

Wed, Jan 21 - Sun, Jan 25

9:18 pm - 3:07 pm

FAT

ONT

17h 49m2 stops

1:05 pm - 8:28 pm

ONT

FAT

7h 23m1 stop

$211Multiple Airlines

Mon, Jan 26 - Mon, Feb 2

9:18 pm - 3:07 pm

FAT

ONT

17h 49m2 stops

3:22 pm - 8:28 pm

ONT

FAT

5h 06m1 stop

$223Multiple Airlines

Mon, Jan 26 - Mon, Feb 2

6:09 pm - 12:20 am

FAT

ONT

30h 11m2 stops

3:22 pm - 8:28 pm

ONT

FAT

5h 06m1 stop

$239Multiple Airlines

Wed, Jan 21 - Mon, Jan 26

6:09 pm - 2:27 pm

FAT

ONT

20h 18m2 stops

2:28 pm - 8:45 pm

ONT

FAT

6h 17m1 stop

$262Multiple Airlines

Wed, Jan 21 - Fri, Jan 23

Alaska Airlines flights from Fresno to Ontario

Our best Alaska Airlines deals on Fresno to Ontario flight tickets

Alaska Airlines

Feb 7

FAT8:01 amFresno Airterminal

7h 07m

1 stop

ONT3:08 pmOntario

Feb 11

ONT11:53 amOntario

10h 15m

1 stop

FAT10:08 pmFresno Airterminal

$264

Find similar

Alaska Airlines

Feb 6

FAT4:34 pmFresno Airterminal

7h 22m

1 stop

ONT11:56 pmOntario

Feb 10

ONT4:03 pmOntario

6h 05m

1 stop

FAT10:08 pmFresno Airterminal

$269

Find similar

Alaska Airlines

Jan 30

FAT4:34 pmFresno Airterminal

7h 22m

1 stop

ONT11:56 pmOntario

Feb 1

ONT6:00 amOntario

9h 37m

1 stop

FAT3:37 pmFresno Airterminal

$274

Find similar

Southwest flights from Fresno to Ontario

Our best Southwest deals on Fresno to Ontario flight tickets

Southwest

Jan 29

FAT8:00 amFresno Airterminal

6h 20m

2 stops

ONT2:20 pmOntario

Feb 2

ONT12:10 pmOntario

7h 30m

2 stops

FAT7:40 pmFresno Airterminal

$299

Find similar

Southwest

Jan 26

FAT8:00 amFresno Airterminal

6h 20m

2 stops

ONT2:20 pmOntario

Feb 2

ONT12:10 pmOntario

7h 30m

2 stops

FAT7:40 pmFresno Airterminal

$329

Find similar

Southwest

Feb 6

FAT3:00 pmFresno Airterminal

5h 30m

1 stop

ONT8:30 pmOntario

Feb 8

ONT5:55 amOntario

5h 55m

2 stops

FAT11:50 amFresno Airterminal

$332

Find similar

Fly from

Fly to

Route

Depart

Return

Price

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 1/21

6:09 pm-10:09 am

1 stop16h 00m

Ontario

Wed 1/28

3:07 pm-2:37 pm

1 stop23h 30m

$172

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Mon 1/26

9:18 pm-1:37 pm

1 stop16h 19m

Ontario

Mon 2/2

3:22 pm-8:28 pm

1 stop5h 06m

$173

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 1/21

6:09 pm-10:09 am

1 stop16h 00m

Ontario

Fri 1/23

2:28 pm-8:45 pm

1 stop6h 17m

$178

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 1/21

6:09 pm-1:11 pm

1 stop19h 02m

Ontario

Mon 1/26

3:22 pm-8:28 pm

1 stop5h 06m

$189

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 1/21

6:09 pm-10:09 am

1 stop16h 00m

Ontario

Tue 1/27

3:07 pm-5:19 pm

1 stop26h 12m

$194

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 1/21

6:09 pm-10:09 am

1 stop16h 00m

Ontario

Sun 1/25

8:27 pm-2:42 pm

1 stop18h 15m

$208

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Mon 1/26

9:18 pm-3:07 pm

2 stops17h 49m

Ontario

Mon 2/2

1:05 pm-8:28 pm

1 stop7h 23m

$211

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Mon 1/26

9:18 pm-3:07 pm

2 stops17h 49m

Ontario

Mon 2/2

3:22 pm-8:28 pm

1 stop5h 06m

$223

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 1/21

6:09 pm-12:20 am

2 stops30h 11m

Ontario

Mon 1/26

3:22 pm-8:28 pm

1 stop5h 06m

$239

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 1/21

6:09 pm-2:27 pm

2 stops20h 18m

Ontario

Fri 1/23

2:28 pm-8:45 pm

1 stop6h 17m

$262

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Fresno to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Ontario?

In general, February is the cheapest month to fly from Fresno to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $231. If you aren’t able to travel during the month of February, then book flights to Ontario from Fresno during September instead. Flights to Ontario in September, while not as cheap as those in February, still average around $268.

When to book flights from Fresno to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Fresno to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Fresno to Ontario (FAT to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Fresno to Ontario

Fastest flight time	3h 21m
Direct flights	None

The fastest flight from Fresno to Ontario takes 3h 21m

There are no direct flights from Fresno to Ontario. There are no popular flight routes from Fresno to Ontario.

Search flight deals

How far is Fresno Airterminal to Ontario by plane?
There are 219.9 mi between Fresno Airterminal and Ontario. A reasonable flight in good conditions will take 3h 21m.
When did momondo last update prices for flights from Fresno Airterminal Airport to Ontario Airport?
Prices for flights from Fresno Airterminal Airport to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Fresno Airterminal Airport to Ontario Airport?
There are 2 operators available for flights from Fresno Airterminal Airport to Ontario Airport as of December 2025.
How old do you have to be to fly from Fresno Airterminal Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Fresno Airterminal Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Fresno to Ontario?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Fresno to Ontario is United Airlines (53% of total bookings). The next most popular airline is Southwest (47%).

Best airlines flying from Fresno to Ontario

Compare and see reviews for airlines that fly from Fresno to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $216	Free Cancellation	Rating 8.0 4,250 reviews		Search Southwest flights
United Airlines	PriceFrom $290	Free Cancellation	Rating 7.4 9,122 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Fresno to Ontario?

Finding the right flight to Ontario from Fresno is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

Can I find flights from Fresno to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Fresno on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Fresno to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Fresno to Ontario.

I’m not ready to book a flight from Fresno to Ontario right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Fresno to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.