What are the cheapest airlines flying from Ontario to Fresno round-trip?

Currently priced at $255, Southwest will fly you from Ontario to Fresno and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Alaska Airlines - these airlines can fly you to your destination from $261 and $308, respectively. These flights start at 34% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Ontario to Fresno one-way?

To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $145. Southwest flights start at $152 while deals on Alaska Airlines start at $157 one-way.

What is the cheapest day to fly from Ontario to Fresno?

Travelers seeking maximum savings on their Ontario to Fresno flight should consider departing on Tuesday mornings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Ontario to Fresno?

Users have found that flying from Ontario to Fresno on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Ontario to Fresno?

Users have found that booking a flight from Ontario to Fresno at least 58 days early can save you up to 87% on average compared to booking a flight this week. If booking 58 days before your flight isn’t an option for you, users have found flights from Ontario to Fresno for as little as $278 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $298 for flights departing within the next 3 days.

What is the cheapest month to fly from Ontario to Fresno?

August is one of the best times of the year to fly to Fresno from Ontario. Prices for August average $310 per person but you can even find prices for as low as $168. The most expensive prices can be found in the month of October. Opting for a August flight can save you 25% on your journey compared to booking in October

Most accurate provider : When it comes to deals on Ontario-Fresno flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Fresno flight deals on Cheapflights vs. FlightHub >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.

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.

$145+ Flights from Ontario to Fresno

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1. Tell us where you want to go

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2. Select your favorite providers

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Cheap flight deals from Ontario to Fresno

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$255 (Southwest)
One-way from	$145 (United Airlines)
Popular in	April
Cheapest in	March
Average price	$306

Provider with most accurate pricing for Ontario-Fresno Airterminal flight deals.

Search Deals

Provider most trusted by Cheapflights users for Ontario-Fresno Airterminal flights.

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From Ontario to Fresno Airterminal

Search Deals

One-way flight from Ontario to Fresno Airterminal

Search Deals

High demand for flights, 8% potential price rise

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 2025

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Find 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 May 1, 2025.

Thu 5/298:10 amONT - FAT

1 stop5h 50mSouthwest

Mon 6/26:45 pmFAT - ONT

1 stop4h 15mSouthwest

Deal found 4/29

$255

Wed 6/111:36 pmONT - FAT

1 stop3h 52mUnited Airlines

Fri 6/136:47 amFAT - ONT

1 stop5h 27mUnited Airlines

Deal found 4/29

$261

Sat 6/77:30 amONT - FAT

1 stop14h 27mAlaska Airlines

Tue 6/102:30 pmFAT - ONT

2 stops8h 16mAlaska Airlines

Deal found 4/28

$308

Fri 5/26:00 amONT - FAT

1 stop3h 53mMultiple Airlines

Sun 5/48:20 amFAT - ONT

1 stop7h 12mMultiple Airlines

Deal found 4/29

$890

Tue 5/2710:00 amONT - FAT

2 stops13h 19mAmerican Airlines

Wed 5/2810:00 amFAT - ONT

2 stops11h 57mAmerican Airlines

Deal found 4/29

$2,200

Best flights from Ontario to Fresno
Discover carefully curated flight deals from Ontario to Fresno that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Thu 5/298:10 amONT - FAT

1 stop5h 50mSouthwest

Mon 6/26:45 pmFAT - ONT

1 stop4h 15mSouthwest

Deal found 4/29

$255

Wed 6/111:36 pmONT - FAT

1 stop3h 52mUnited Airlines

Fri 6/136:47 amFAT - ONT

1 stop5h 27mUnited Airlines

Deal found 4/29

$261

Sat 6/77:30 amONT - FAT

1 stop14h 27mAlaska Airlines

Tue 6/102:30 pmFAT - ONT

2 stops8h 16mAlaska Airlines

Deal found 4/28

$308

Tue 5/2710:00 amONT - FAT

2 stops13h 19mAmerican Airlines

Wed 5/2810:00 amFAT - ONT

2 stops11h 57mAmerican Airlines

Deal found 4/29

$2,200

Last-minute flights from Ontario to Fresno
Discover last-minute flight deals from Ontario to Fresno. Data last updated May 1, 2025 and is based on user searches.

Thu 5/16:48 pmONT - FAT

1 stop3h 33mMultiple Airlines

Thu 5/810:17 amFAT - ONT

1 stop7h 13mMultiple Airlines

Deal found 4/30

$745

Fri 5/95:45 amONT - FAT

1 stop4h 25mSouthwest

Sun 5/183:15 pmFAT - ONT

1 stop8h 35mSouthwest

Deal found 4/28

$442

Fri 5/98:59 pmONT - FAT

2 stops22h 00mAlaska Airlines

Mon 5/127:44 pmFAT - ONT

2 stops13h 32mAlaska Airlines

Deal found 4/30

$498

Sat 5/106:00 amONT - FAT

1 stop11h 59mUnited Airlines

Sat 5/172:27 pmFAT - ONT

1 stop6h 07mUnited Airlines

Deal found 4/29

$471

Tue 5/2710:00 amONT - FAT

2 stops13h 19mAmerican Airlines

Wed 5/2810:00 amFAT - ONT

2 stops11h 57mAmerican Airlines

Deal found 4/29

$2,200

Thu 5/298:10 amONT - FAT

1 stop5h 50mSouthwest

Mon 6/26:45 pmFAT - ONT

1 stop4h 15mSouthwest

Deal found 4/29

$255

Sat 5/311:36 pmONT - FAT

1 stop3h 59mUnited Airlines

Fri 6/66:05 pmFAT - ONT

1 stop4h 40mUnited Airlines

Deal found 4/30

$274

Sat 5/317:30 amONT - FAT

2 stops14h 37mAlaska Airlines

Fri 6/67:35 pmFAT - ONT

1 stop15h 22mAlaska Airlines

Deal found 4/30

$338

One-way flights from Ontario to Fresno
Search for one-way flight options from Ontario to Fresno. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Fri 7/46:10 amONT - FAT

1 stop6h 25mUnited Airlines

Deal found 4/29

$145

Fri 6/65:40 amONT - FAT

1 stop7h 20mSouthwest

Deal found 4/30

$152

Sat 5/317:30 amONT - FAT

1 stop14h 27mAlaska Airlines

Deal found 4/30

$157

Mon 7/1412:59 amONT - FAT

1 stop17h 46mAmerican Airlines

Deal found 4/29

$368

Tue 6/36:00 amONT - FAT

3 stops12h 43mMultiple Airlines

Deal found 4/28

$397

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Fresno that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Thu 5/29

8:10 am-2:00 pm

1 stop5h 50m

Fresno Airterminal

Mon 6/2

6:45 pm-11:00 pm

1 stop4h 15m

$255

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Wed 6/11

1:36 pm-5:28 pm

1 stop3h 52m

Fresno Airterminal

Fri 6/13

6:47 am-12:14 pm

1 stop5h 27m

$261

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sat 6/7

7:30 am-9:57 pm

1 stop14h 27m

Fresno Airterminal

Tue 6/10

2:30 pm-10:46 pm

2 stops8h 16m

$308

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Tue 5/27

10:00 am-11:19 pm

2 stops13h 19m

Fresno Airterminal

Wed 5/28

10:00 am-9:57 pm

2 stops11h 57m

$2,200

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Fri 7/4

6:10 am-12:35 pm

1 stop6h 25m

$145

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Fri 6/6

5:40 am-1:00 pm

1 stop7h 20m

$152

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Sat 5/31

7:30 am-9:57 pm

1 stop14h 27m

$157

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Mon 7/14

12:59 am-6:45 pm

1 stop17h 46m

$368

OntarioFresno

ONT - FAT

ONTFAT

Ontario

Tue 6/3

6:00 am-6:43 pm

3 stops12h 43m

$397

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from Ontario to Fresno

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Fresno in May.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy2 stars	Trust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Fresno flight deals on Cheapflights vs. FlightHub >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, January is the cheapest month in which you can book a flight from Ontario to Fresno (average of $363). Flying from Ontario to Fresno in June is currently the most expensive (average of $504). 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?

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 13% on your trip compared to booking a flight at noon.

Rainfall in Fresno by month

In terms of precipitation, rainfall in Fresno ranges from 0.0 - 2.2 inches per month. January is typically the wettest month, when rainfall can reach 2.2 in. July is typically the driest time to visit Fresno when rainfall is around 0.0 in.

Temperature in Fresno by month

If weather is an important factor for your trip to Fresno, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

Reviews of airlines servicing Fresno

Read through reviews of airlines operating flights from Ontario to Fresno, such as Alaska Airlines, Southwest and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

9,972 reviews

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,294 reviews

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,696 reviews

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What are the cheapest airlines flying from Ontario to Fresno round-trip?
Currently priced at $255, Southwest will fly you from Ontario to Fresno and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Alaska Airlines - these airlines can fly you to your destination from $261 and $308, respectively. These flights start at 34% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Ontario to Fresno one-way?
To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $145. Southwest flights start at $152 while deals on Alaska Airlines start at $157 one-way.
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, January is the cheapest month in which you can book a flight from Ontario to Fresno (average of $363). Flying from Ontario to Fresno in June is currently the most expensive (average of $504). 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

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Clovis

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Kingsburg

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Other flights to Fresno

Top 2 airlines flying from Ontario to Fresno

Airline	Cheapest	Average	Flexibility	On-time
Southwest	Cheapest$229	Average$336	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$238	Average$446	FlexibilityNo cancel fee	On-time69%

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$145+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Fresno with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Fresno

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Fresno

Cheapest flights from Ontario to FresnoExplore 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 May 1, 2025.

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 May 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Fresno that are best for you.

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 May.

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.

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?

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 May 1, 2025.

Rainfall in Fresno by month

Plan your trip to Fresno by taking into account the average rainfall totals by month.

Temperature in Fresno by month

Plan your trip to Fresno by taking into account the average temperature totals by month.

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 May 1, 2025.

Read through reviews of airlines operating flights from Ontario to Fresno, such as Alaska Airlines, Southwest and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the cheapest airlines to fly from Ontario to Fresno one-way?

Can I find deals for flights from Ontario to Fresno that include hotel bookings?

How can I find direct flights from Ontario to Fresno?

Can I find deals for business class flights from Ontario to Fresno?

What is the cheapest month to book a flight from Ontario to Fresno?

Traveling to a place near Ontario?

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Alternative routes for Ontario to Fresno

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Top 2 airlines flying from Ontario to Fresno

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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 May 1, 2025.