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

Alaska Airlines is the most popular carrier 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.

$82 Cheap Flights from Fresno to Ontario in 2025/26

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5:43 pm - 7:36 am

FAT

ONT

13h 53m1 stop

2:34 pm - 8:28 pm

ONT

FAT

5h 54m1 stop

$178Multiple Airlines

Thu, Jan 8 - Mon, Jan 12

6:09 pm - 7:07 am

FAT

ONT

12h 58m1 stop

9:10 pm - 2:37 pm

ONT

FAT

17h 27m1 stop

$200Multiple Airlines

Wed, Jan 14 - Sat, Jan 17

12:05 pm - 9:50 am

FAT

ONT

21h 45m1 stop

3:21 pm - 4:53 pm

ONT

FAT

25h 32m1 stop

$222Multiple Airlines

Tue, Jan 6 - Sat, Jan 10

6:31 pm - 3:09 pm

FAT

ONT

20h 38m1 stop

2:34 pm - 8:45 pm

ONT

FAT

6h 11m1 stop

$230Multiple Airlines

Mon, Jan 5 - Fri, Jan 9

4:34 pm - 10:59 am

FAT

ONT

18h 25m1 stop

11:53 am - 10:08 pm

ONT

FAT

10h 15m1 stop

$235Alaska Airlines

Wed, Jan 21 - Wed, Jan 28

5:43 pm - 1:32 pm

FAT

ONT

19h 49m1 stop

1:05 pm - 8:28 pm

ONT

FAT

7h 23m1 stop

$236Multiple Airlines

Thu, Feb 5 - Mon, Feb 9

3:40 pm - 11:08 am

FAT

ONT

19h 28m1 stop

6:14 am - 10:13 pm

ONT

FAT

15h 59m1 stop

$240Alaska Airlines

Mon, Feb 23 - Wed, Mar 4

5:43 pm - 7:36 am

FAT

ONT

13h 53m1 stop

6:00 am - 8:28 pm

ONT

FAT

14h 28m2 stops

$257Multiple Airlines

Thu, Jan 8 - Mon, Jan 12

8:01 am - 8:36 pm

FAT

ONT

12h 35m1 stop

4:03 pm - 10:08 pm

ONT

FAT

6h 05m1 stop

$263Alaska Airlines

Tue, Jan 13 - Sat, Jan 17

8:06 am - 11:32 pm

FAT

ONT

15h 26m1 stop

6:14 am - 2:39 pm

ONT

FAT

8h 25m1 stop

$269Alaska Airlines

Sat, Feb 21 - Wed, Feb 25

Alaska Airlines flights from Fresno to Ontario

Our best Alaska Airlines deals on Fresno to Ontario flight tickets

Alaska Airlines

Jan 21

FAT4:34 pmFresno Airterminal

18h 25m

1 stop

ONT10:59 amOntario

Jan 28

ONT11:53 amOntario

10h 15m

1 stop

FAT10:08 pmFresno Airterminal

$235

Find similar

Alaska Airlines

Feb 23

FAT3:40 pmFresno Airterminal

19h 28m

1 stop

ONT11:08 amOntario

Mar 4

ONT6:14 amOntario

15h 59m

1 stop

FAT10:13 pmFresno Airterminal

$240

Find similar

Alaska Airlines

Jan 13

FAT8:01 amFresno Airterminal

12h 35m

1 stop

ONT8:36 pmOntario

Jan 17

ONT4:03 pmOntario

6h 05m

1 stop

FAT10:08 pmFresno Airterminal

$263

Find similar

United Airlines flights from Fresno to Ontario

Our best United Airlines deals on Fresno to Ontario flight tickets

United Airlines

Jan 20

FAT12:45 pmFresno Airterminal

8h 13m

1 stop

ONT8:58 pmOntario

Jan 27

ONT6:00 amOntario

3h 46m

1 stop

FAT9:46 amFresno Airterminal

$331

Find similar

United Airlines

Jan 13

FAT5:10 amFresno Airterminal

7h 37m

1 stop

ONT12:47 pmOntario

Jan 15

ONT5:05 amOntario

8h 28m

1 stop

FAT1:33 pmFresno Airterminal

$340

Find similar

United Airlines

Mar 18

FAT1:15 pmFresno Airterminal

4h 26m

1 stop

ONT5:41 pmOntario

Mar 22

ONT6:00 amOntario

6h 13m

1 stop

FAT12:13 pmFresno Airterminal

$342

Find similar

Fly from

Fly to

Route

Depart

Return

Price

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Thu 1/8

5:43 pm-7:36 am

1 stop13h 53m

Ontario

Mon 1/12

2:34 pm-8:28 pm

1 stop5h 54m

$178

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 1/14

6:09 pm-7:07 am

1 stop12h 58m

Ontario

Sat 1/17

9:10 pm-2:37 pm

1 stop17h 27m

$200

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Tue 1/6

12:05 pm-9:50 am

1 stop21h 45m

Ontario

Sat 1/10

3:21 pm-4:53 pm

1 stop25h 32m

$222

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Mon 1/5

6:31 pm-3:09 pm

1 stop20h 38m

Ontario

Fri 1/9

2:34 pm-8:45 pm

1 stop6h 11m

$230

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 1/21

4:34 pm-10:59 am

1 stop18h 25m

Ontario

Wed 1/28

11:53 am-10:08 pm

1 stop10h 15m

$235

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Thu 2/5

5:43 pm-1:32 pm

1 stop19h 49m

Ontario

Mon 2/9

1:05 pm-8:28 pm

1 stop7h 23m

$236

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Mon 2/23

3:40 pm-11:08 am

1 stop19h 28m

Ontario

Wed 3/4

6:14 am-10:13 pm

1 stop15h 59m

$240

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Thu 1/8

5:43 pm-7:36 am

1 stop13h 53m

Ontario

Mon 1/12

6:00 am-8:28 pm

2 stops14h 28m

$257

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Tue 1/13

8:01 am-8:36 pm

1 stop12h 35m

Ontario

Sat 1/17

4:03 pm-10:08 pm

1 stop6h 05m

$263

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Sat 2/21

8:06 am-11:32 pm

1 stop15h 26m

Ontario

Wed 2/25

6:14 am-2:39 pm

1 stop8h 25m

$269

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.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Saturday when prices can be found for as low as $324. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Fresno to Ontario for around $485.

What is the cheapest time of day to depart on your flight to Ontario?

In the afternoon is the cheapest time of day to fly from Fresno to Ontario when you can find flight prices for as low as $352. Flying to Ontario in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $415 on average. Flights to Ontario from Fresno at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 55m
Direct flights	None

The fastest flight from Fresno to Ontario takes 3h 55m

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 55m.
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 (52% of total bookings). The next most popular airline is Southwest (48%).

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 4,253 reviews		Search Southwest flights
United Airlines	PriceFrom $290	Free Cancellation	Rating 7.4 9,106 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.