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.

$84 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.

10:38 am - 1:28 pm

FAT

ONT

26h 50m

1 stop

2:06 pm - 9:31 pm

ONT

FAT

7h 25m

1 stop

$168Multiple Airlines

Mon, Mar 9 - Thu, Mar 12

1:07 pm - 6:22 pm

FAT

ONT

5h 15m

1 stop

7:17 pm - 3:16 pm

ONT

FAT

19h 59m

1 stop

$174Multiple Airlines

Wed, Feb 25 - Wed, Mar 4

1:07 pm - 9:34 am

FAT

ONT

20h 27m

2 stops

7:17 pm - 5:48 pm

ONT

FAT

22h 31m

1 stop

$223Multiple Airlines

Wed, Feb 25 - Wed, Mar 4

1:08 pm - 1:11 pm

FAT

ONT

24h 03m

1 stop

2:06 pm - 12:18 pm

ONT

FAT

22h 12m

1 stop

$230Multiple Airlines

Wed, Feb 11 - Tue, Feb 17

3:01 pm - 3:05 pm

FAT

ONT

24h 04m

2 stops

2:06 pm - 9:31 pm

ONT

FAT

7h 25m

1 stop

$235Multiple Airlines

Mon, Mar 9 - Thu, Mar 12

9:18 pm - 1:52 pm

FAT

ONT

16h 34m

1 stop

9:43 pm - 10:18 am

ONT

FAT

12h 35m

1 stop

$240Multiple Airlines

Mon, Feb 9 - Fri, Feb 13

3:00 pm - 8:30 pm

FAT

ONT

5h 30m

1 stop

3:50 pm - 9:00 pm

ONT

FAT

5h 10m

1 stop

$289Southwest

Thu, Feb 19 - Mon, Feb 23

5:25 am - 10:20 am

FAT

ONT

4h 55m

1 stop

5:30 am - 11:50 am

ONT

FAT

6h 20m

2 stops

$294Southwest

Thu, Feb 19 - Mon, Feb 23

3:00 pm - 10:10 pm

FAT

ONT

7h 10m

2 stops

3:35 pm - 10:05 pm

ONT

FAT

6h 30m

2 stops

$299Southwest

Thu, Feb 19 - Mon, Feb 23

4:19 pm - 11:32 pm

FAT

ONT

7h 13m

1 stop

12:02 pm - 10:13 pm

ONT

FAT

10h 11m

1 stop

$303Alaska Airlines

Sat, Mar 7 - Wed, Mar 11

Southwest flights from Fresno to Ontario

Our best Southwest deals on Fresno to Ontario flight tickets

Southwest

Feb 19

FAT3:00 pmFresno Airterminal

5h 30m

1 stop

ONT8:30 pmOntario

Feb 23

ONT3:50 pmOntario

5h 10m

1 stop

FAT9:00 pmFresno Airterminal

$289

Southwest

Feb 19

FAT5:25 amFresno Airterminal

4h 55m

1 stop

ONT10:20 amOntario

Feb 23

ONT5:30 amOntario

6h 20m

2 stops

FAT11:50 amFresno Airterminal

$294

Southwest

Feb 19

FAT3:00 pmFresno Airterminal

7h 10m

2 stops

ONT10:10 pmOntario

Feb 23

ONT3:35 pmOntario

6h 30m

2 stops

FAT10:05 pmFresno Airterminal

$299

Alaska Airlines flights from Fresno to Ontario

Our best Alaska Airlines deals on Fresno to Ontario flight tickets

Alaska Airlines

Mar 7

FAT4:19 pmFresno Airterminal

7h 13m

1 stop

ONT11:32 pmOntario

Mar 11

ONT12:02 pmOntario

10h 11m

1 stop

FAT10:13 pmFresno Airterminal

$303

Alaska Airlines

Feb 20

FAT3:40 pmFresno Airterminal

19h 28m

1 stop

ONT11:08 amOntario

Feb 28

ONT6:14 amOntario

15h 59m

1 stop

FAT10:13 pmFresno Airterminal

$308

Alaska Airlines

Feb 19

FAT3:40 pmFresno Airterminal

7h 52m

1 stop

ONT11:32 pmOntario

Feb 21

ONT7:00 amOntario

12h 32m

1 stop

FAT7:32 pmFresno Airterminal

$323

Fly from

Fly to

Route

Depart

Return

Price

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Mon 3/9

10:38 am-1:28 pm

1 stop26h 50m

Ontario

Thu 3/12

2:06 pm-9:31 pm

1 stop7h 25m

$168

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 2/25

1:07 pm-6:22 pm

1 stop5h 15m

Ontario

Wed 3/4

7:17 pm-3:16 pm

1 stop19h 59m

$174

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 2/25

1:07 pm-9:34 am

2 stops20h 27m

Ontario

Wed 3/4

7:17 pm-5:48 pm

1 stop22h 31m

$223

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Wed 2/11

1:08 pm-1:11 pm

1 stop24h 03m

Ontario

Tue 2/17

2:06 pm-12:18 pm

1 stop22h 12m

$230

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

$235

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Mon 2/9

9:18 pm-1:52 pm

1 stop16h 34m

Ontario

Fri 2/13

9:43 pm-10:18 am

1 stop12h 35m

$240

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Thu 2/19

3:00 pm-8:30 pm

1 stop5h 30m

Ontario

Mon 2/23

3:50 pm-9:00 pm

1 stop5h 10m

$289

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Thu 2/19

5:25 am-10:20 am

1 stop4h 55m

Ontario

Mon 2/23

5:30 am-11:50 am

2 stops6h 20m

$294

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Thu 2/19

3:00 pm-10:10 pm

2 stops7h 10m

Ontario

Mon 2/23

3:35 pm-10:05 pm

2 stops6h 30m

$299

FresnoOntario

FAT - ONT

FATONT

Fresno Airterminal

Sat 3/7

4:19 pm-11:32 pm

1 stop7h 13m

Ontario

Wed 3/11

12:02 pm-10:13 pm

1 stop10h 11m

$303

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	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 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 (55% of total bookings). The next most popular airline is Southwest (45%).

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 4,268 reviews		Search Southwest flights
United Airlines	PriceFrom $290	Free Cancellation	Rating 7.4 9,207 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.