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

Southwest and Alaska Airlines 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 January 2026.

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.

$88 Cheap Flights from Fresno to Ontario in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Fresno to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:01 pm - 3:54 pm

FAT

ONT

24h 53m

1 stop

2:06 pm - 9:31 pm

ONT

FAT

7h 25m

1 stop

$174Multiple Airlines

Mon, Mar 9 - Thu, Mar 12

1:08 pm - 6:22 pm

FAT

ONT

5h 14m

1 stop

3:22 pm - 3:18 pm

ONT

FAT

23h 56m

1 stop

$203Multiple Airlines

Wed, Feb 18 - Wed, Feb 25

1:08 pm - 9:34 am

FAT

ONT

20h 26m

2 stops

3:22 pm - 3:18 pm

ONT

FAT

23h 56m

1 stop

$240Multiple Airlines

Wed, Feb 18 - Wed, Feb 25

4:09 pm - 5:48 pm

FAT

ONT

25h 39m

1 stop

10:18 pm - 9:03 am

ONT

FAT

10h 45m

1 stop

$279Multiple Airlines

Sun, Feb 15 - Sun, Feb 22

7:10 am - 12:48 pm

FAT

ONT

5h 38m

1 stop

6:37 pm - 11:56 pm

ONT

FAT

5h 19m

1 stop

$289United Airlines

Wed, Feb 25 - Mon, Mar 2

3:01 pm - 3:05 pm

FAT

ONT

24h 04m

2 stops

2:06 pm - 9:31 pm

ONT

FAT

7h 25m

1 stop

$291Multiple Airlines

Mon, Mar 9 - Thu, Mar 12

11:00 am - 4:55 pm

FAT

ONT

5h 55m

2 stops

12:45 pm - 3:55 pm

ONT

FAT

3h 10m

1 stop

$294Southwest

Wed, Feb 25 - Mon, Mar 2

5:15 am - 12:40 pm

FAT

ONT

7h 25m

2 stops

4:25 pm - 10:55 pm

ONT

FAT

6h 30m

2 stops

$300Southwest

Mon, Mar 9 - Thu, Mar 12

3:40 pm - 10:44 pm

FAT

ONT

7h 04m

1 stop

12:02 pm - 10:13 pm

ONT

FAT

10h 11m

1 stop

$303Alaska Airlines

Wed, Feb 18 - Tue, Feb 24

12:25 pm - 10:37 pm

FAT

ONT

10h 12m

2 stops

7:30 am - 4:22 pm

ONT

FAT

8h 52m

2 stops

$304Delta

Tue, Feb 17 - Sat, Feb 21

United Airlines flights from Fresno to Ontario

Our best United Airlines deals on Fresno to Ontario flight tickets

United Airlines

Feb 25

FAT7:10 amFresno Airterminal

5h 38m

1 stop

ONT12:48 pmOntario

Mar 2

ONT6:37 pmOntario

5h 19m

1 stop

FAT11:56 pmFresno Airterminal

$289

United Airlines

Feb 9

FAT2:22 pmFresno Airterminal

3h 21m

1 stop

ONT5:43 pmOntario

Feb 12

ONT1:50 pmOntario

6h 21m

1 stop

FAT8:11 pmFresno Airterminal

$349

United Airlines

Apr 25

FAT5:00 amFresno Airterminal

12h 47m

2 stops

ONT5:47 pmOntario

May 9

ONT1:30 pmOntario

4h 32m

1 stop

FAT6:02 pmFresno Airterminal

$354

Southwest flights from Fresno to Ontario

Our best Southwest deals on Fresno to Ontario flight tickets

Southwest

Feb 25

FAT11:00 amFresno Airterminal

5h 55m

2 stops

ONT4:55 pmOntario

Mar 2

ONT12:45 pmOntario

3h 10m

1 stop

FAT3:55 pmFresno Airterminal

$294

Southwest

Mar 9

FAT5:15 amFresno Airterminal

7h 10m

2 stops

ONT12:25 pmOntario

Mar 12

ONT4:25 pmOntario

6h 30m

2 stops

FAT10:55 pmFresno Airterminal

$300

Southwest

Feb 15

FAT6:30 amFresno Airterminal

5h 35m

2 stops

ONT12:05 pmOntario

Feb 22

ONT5:20 amOntario

8h 30m

1 stop

FAT1:50 pmFresno Airterminal

$352

Fly from

Fly to

Route

Depart

Return

Price

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Mon 3/9

3:01 pm-3:54 pm

1 stop24h 53m

Ontario

Thu 3/12

2:06 pm-9:31 pm

1 stop7h 25m

$174

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 2/18

1:08 pm-6:22 pm

1 stop5h 14m

Ontario

Wed 2/25

3:22 pm-3:18 pm

1 stop23h 56m

$203

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 2/18

1:08 pm-9:34 am

2 stops20h 26m

Ontario

Wed 2/25

3:22 pm-3:18 pm

1 stop23h 56m

$240

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Sun 2/15

4:09 pm-5:48 pm

1 stop25h 39m

Ontario

Sun 2/22

10:18 pm-9:03 am

1 stop10h 45m

$279

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 2/25

7:10 am-12:48 pm

1 stop5h 38m

Ontario

Mon 3/2

6:37 pm-11:56 pm

1 stop5h 19m

$289

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Mon 3/9

3:01 pm-3:05 pm

2 stops24h 04m

Ontario

Thu 3/12

2:06 pm-9:31 pm

1 stop7h 25m

$291

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 2/25

11:00 am-4:55 pm

2 stops5h 55m

Ontario

Mon 3/2

12:45 pm-3:55 pm

1 stop3h 10m

$294

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Mon 3/9

5:15 am-12:40 pm

2 stops7h 25m

Ontario

Thu 3/12

4:25 pm-10:55 pm

2 stops6h 30m

$300

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 2/18

3:40 pm-10:44 pm

1 stop7h 04m

Ontario

Tue 2/24

12:02 pm-10:13 pm

1 stop10h 11m

$303

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Tue 2/17

12:25 pm-10:37 pm

2 stops10h 12m

Ontario

Sat 2/21

7:30 am-4:22 pm

2 stops8h 52m

$304

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, September 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 $268. If you aren’t able to travel during the month of September, then book flights to Ontario from Fresno during January instead. Flights to Ontario in January, while not as cheap as those in September, still average around $272.

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	4h 05m
Direct flights	None

The fastest flight from Fresno to Ontario takes 4h 05m

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 4h 05m.
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 January 2026.
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 (56% of total bookings). The next most popular airline is Southwest (44%).

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 4,266 reviews		Search Southwest flights
United Airlines	PriceFrom $290	Free Cancellation	Rating 7.4 9,183 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.