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212 € Cheap Flights from Fresno Yosemite to Ontario International

Compare Fresno Yosemite to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

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Flight deals from Fresno Yosemite to Ontario International

Looking for a cheap last-minute deal or the best return flight from Fresno Yosemite Airport to Ontario International Airport? If you want to travel next month, return fares start from 220 €. Find the lowest prices on one-way and return tickets right here.
Ontario.212 € per passenger.Departing Mon, 24 Aug, returning Fri, 28 Aug.Return flight with Allegiant Air and Frontier Airlines.Outbound indirect flight with Allegiant Air, departs from Fresno Yosemite on Mon, 24 Aug, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Fri, 28 Aug, arriving in Fresno Yosemite.Price includes taxes and charges.From 212 €, select.
Ontario.220 € per passenger.Departing Thu, 10 Sep, returning Thu, 17 Sep.Return flight with Allegiant Air and Frontier Airlines.Outbound indirect flight with Allegiant Air, departs from Fresno Yosemite on Thu, 10 Sep, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Thu, 17 Sep, arriving in Fresno Yosemite.Price includes taxes and charges.From 220 €, select.
Ontario.239 € per passenger.Departing Wed, 14 Oct, returning Thu, 29 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fresno Yosemite on Wed, 14 Oct, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Thu, 29 Oct, arriving in Fresno Yosemite.Price includes taxes and charges.From 239 €, select.
Ontario.239 € per passenger.Departing Wed, 30 Sep, returning Sat, 3 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fresno Yosemite on Wed, 30 Sep, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Sat, 3 Oct, arriving in Fresno Yosemite.Price includes taxes and charges.From 239 €, select.
Ontario.239 € per passenger.Departing Sat, 12 Dec, returning Tue, 29 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fresno Yosemite on Sat, 12 Dec, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 29 Dec, arriving in Fresno Yosemite.Price includes taxes and charges.From 239 €, select.
Ontario.245 € per passenger.Departing Thu, 29 Oct, returning Mon, 9 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fresno Yosemite on Thu, 29 Oct, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Mon, 9 Nov, arriving in Fresno Yosemite.Price includes taxes and charges.From 245 €, select.
Ontario.245 € per passenger.Departing Mon, 22 Feb, returning Wed, 24 Feb.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fresno Yosemite on Mon, 22 Feb, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 24 Feb, arriving in Fresno Yosemite.Price includes taxes and charges.From 245 €, select.
Ontario.276 € per passenger.Departing Wed, 4 Nov, returning Fri, 6 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fresno Yosemite on Wed, 4 Nov, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Fri, 6 Nov, arriving in Fresno Yosemite.Price includes taxes and charges.From 276 €, select.
Ontario.284 € per passenger.Departing Thu, 5 Nov, returning Sun, 13 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fresno Yosemite on Thu, 5 Nov, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Sun, 13 Dec, arriving in Fresno Yosemite.Price includes taxes and charges.From 284 €, select.
Ontario.318 € per passenger.Departing Fri, 28 Aug, returning Fri, 4 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fresno Yosemite on Fri, 28 Aug, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Fri, 4 Sep, arriving in Fresno Yosemite.Price includes taxes and charges.From 318 €, select.
Ontario.348 € per passenger.Departing Thu, 18 Mar, returning Fri, 26 Mar.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Fresno Yosemite on Thu, 18 Mar, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Fri, 26 Mar, arriving in Fresno Yosemite.Price includes taxes and charges.From 348 €, select.

Find the cheapest month to fly from Fresno Yosemite to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Fresno Yosemite to Ontario International flights are currently cheapest in August.
Aug
from 212 €
Sep
from 220 €
Oct
from 239 €
Nov
from 276 €
Dec
from 239 €
Jan
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Feb
from 245 €
Mar
from 348 €
Apr
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May
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Jun
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Jul
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Fresno Yosemite to Ontario International: Alternative routes

Compare routes from Fresno Yosemite to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Ontario International

4km from central Ontario
Closest
from 212 €
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San Bernardino Norton AFB

39km from central Ontario
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Santa Ana John Wayne

48km from central Ontario
from 156 €
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Long Beach Municipal

54km from central Ontario
from 245 €
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Hawthorne

65km from central Ontario
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Burbank

67km from central Ontario
from 147 €
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Los Angeles International

71km from central Ontario
Cheapest
from 128 €
Search flights

Fresno to Ontario: Flight information

The things to know before you go.
Cheapest flight found212 €
Cheapest month to flyAugust

Finding cheap flights from Fresno Yosemite to Ontario International: Frequently asked questions

The best price we found for a return flight from Fresno Yosemite to Ontario International is 212 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Fresno Yosemite to Ontario International. But we found flights with one or more stops from 212 €.
As of August 2026, there are no flights flying from Fresno Yosemite to Ontario International.
The cheapest month to fly from Fresno Yosemite to Ontario International is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Fresno Yosemite Airport to Ontario International Airport on Monday, 24 August 2026.
No airlines currently offer direct flights between Fresno Yosemite Airport and Ontario International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Allegiant Air offers the cheapest flight tickets to Ontario International.

Travelling from Fresno Yosemite Airport (FAT) to Ontario International Airport (ONT): what you need to know

  • Ontario's timezone is UTC-8, which is the same as Fresno.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to board your FAT to ONT flight.

  • Travelling during a peak month like July? School holidays and other high seasons can mean longer queues at airport checkpoints. Play things extra safe and arrive up to four hours before international flights and two hours before domestic departures.

  • Think about adding a stopover when booking your ticket from Fresno Yosemite Airport to Ontario International Airport. Simply deselect 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Here's where you can stop between FAT and ONT:

    • San Francisco International Airport

    • Phoenix Sky Harbour Airport

    • Harry Reid International Airport

How to find the cheapest flights from Fresno Yosemite Airport (FAT) to Ontario International Airport (ONT)

  • Right now, 91 € is the cheapest price we've seen for a one-way Fresno Yosemite Airport to Ontario International Airport flight. The best price for a return plane ticket is 212 €. Remember that fares may change due to availability when booking.

  • It's often best to book ahead of time if you want to get cheap tickets from FAT to ONT. That's because flight prices are based on demand, which tends to rise closer to the date of departure.

  • Getting cheap flights from Fresno Yosemite Airport to Ontario International Airport is easy if you're flexible with your dates. Use the 'Whole month' function to see the lowest fares throughout the month and land a great deal.

  • You won't have to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll notify you as soon as there's a new deal on cheap flights from FAT to ONT.

  • Lock in the perfect flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Fresno Yosemite Airport to Ontario International Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and number of stops.

Handy information about Fresno Yosemite Airport (FAT)

  • You'll find FAT at 5175 E. Clinton Way.

  • Fresno Yosemite Airport has an excellent on-time performance, making delays less likely. Departures from FAT make it to their destination as scheduled 81% of the time.

  • Fresno Yosemite Airport is about 8 kilometres from central Fresno. If you're driving, catching a taxi or ride-sharing from the centre, it'll take you 10 minutes or so to get there, depending on the traffic.

  • Expect a trip time of around 30 minutes on public transport.

  • Taking an early flight from Fresno Yosemite Airport to Ontario International Airport? Avoid the last-minute rush to the airport (and get some extra shut-eye) by choosing one of these stays close to FAT:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • You'll find ONT at 2900 E. Airport Drive.

  • From Ontario International Airport, Ontario is approximately 10 kilometres away. It takes around 15 minutes to drive to the centre.

  • It typically takes 45 minutes to get there using public transport.

When to fly to Ontario International Airport (ONT)

  • It's time to plan your trip dates for your flight from Fresno Yosemite Airport to Ontario International Airport. July is the busiest month to visit Ontario. If you prefer a more relaxed vibe, go in March.

  • When reserving your flight from Fresno Yosemite Airport to Ontario International Airport, think about the kind of weather you like. August is the warmest month in Ontario, with temperatures ranging from 16ºC (61ºF) to 36ºC (97ºF).

  • Look for cheap tickets from FAT to ONT in February if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 4ºC (39ºF) and 24ºC (75ºF) on average.

Explore more of the United States

  • You've visited Ontario, now it's time to explore other corners of the United States. Journey around 56 kilometres west to Los Angeles to check off its leading sights. From Hollywood Sign to Universal Studios Hollywood and Hollywood Bowl, you'll have a full itinerary ahead.

  • If you're ready to explore another corner of the United States, consider San Diego, about 153 kilometres south of Ontario. San Diego Zoo, San Diego Balboa Park and USS Midway Museum are key highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.