Flights from Ontario International Airport to California

Flight deals from Ontario International Airport to California

Looking for cheap tickets from Ontario International Airport to California, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

San Francisco.HK$843 per passenger.Departing Sun, 14 Dec, returning Mon, 15 Dec.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Ontario International on Sun, 14 Dec, arriving in San Francisco International.Inbound direct flight with Frontier Airlines departs from San Francisco International on Mon, 15 Dec, arriving in Ontario International.Price includes taxes and charges.From HK$843, select.

Los Angeles.HK$899 per passenger.Departing Wed, 11 Feb, returning Wed, 18 Feb.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Wed, 11 Feb, arriving in Los Angeles International.Inbound indirect flight with Frontier Airlines, departs from Los Angeles International on Wed, 18 Feb, arriving in Ontario International.Price includes taxes and charges.From HK$899, select.

Oakland.HK$971 per passenger.Departing Tue, 6 Jan, returning Tue, 13 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Tue, 6 Jan, arriving in Oakland Metropolitan Oak.Inbound direct flight with Southwest Airlines departs from Oakland Metropolitan Oak on Tue, 13 Jan, arriving in Ontario International.Price includes taxes and charges.From HK$971, select.

San Diego.HK$984 per passenger.Departing Sun, 8 Feb, returning Sat, 14 Feb.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Sun, 8 Feb, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Sat, 14 Feb, arriving in Ontario International.Price includes taxes and charges.From HK$984, select.

Sacramento.HK$996 per passenger.Departing Thu, 22 Jan, returning Mon, 26 Jan.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Thu, 22 Jan, arriving in Sacramento International.Inbound indirect flight with Frontier Airlines, departs from Sacramento International on Mon, 26 Jan, arriving in Ontario International.Price includes taxes and charges.From HK$996, select.

San Jose.HK$996 per passenger.Departing Thu, 22 Jan, returning Sun, 25 Jan.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Thu, 22 Jan, arriving in San Jose International.Inbound indirect flight with Frontier Airlines, departs from San Jose International on Sun, 25 Jan, arriving in Ontario International.Price includes taxes and charges.From HK$996, select.

Carmel.HK$1,300 per passenger.Departing Fri, 23 Jan, returning Mon, 26 Jan.Return flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Fri, 23 Jan, arriving in Carmel Monterey Peninsula.Inbound indirect flight with Allegiant Air, departs from Carmel Monterey Peninsula on Mon, 26 Jan, arriving in Ontario International.Price includes taxes and charges.From HK$1,300, select.

Fresno.HK$1,474 per passenger.Departing Wed, 28 Jan, returning Wed, 4 Feb.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 28 Jan, arriving in Fresno Yosemite.Inbound indirect flight with Southwest Airlines, departs from Fresno Yosemite on Wed, 4 Feb, arriving in Ontario International.Price includes taxes and charges.From HK$1,474, select.

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Flying from Ontario International Airport to California

Arm yourself with these facts on the fly.

Cheapest flight found	HK$843
Cheapest month to fly	December
Average flight time	1 hr, 16 mins
Average flights per week	183
Most popular airline	Southwest Airlines

How to find cheap flights from Ontario International Airport to California

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Ontario International Airport to California. Other savvy travellers recently found return flights from HK$843 and one-way tickets from HK$351. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in December

The cheapest time to fly from Ontario International Airport to California is currently December.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Ontario International Airport to anywhere you choose in California.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Ontario International Airport to your chosen airport in California go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the California Airport to California flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

Are there any direct flights from Ontario International Airport to California?

Yes - direct flights currently operate from Ontario International Airport to San Francisco International Airport, Oakland Metropolitan Oak Airport and Sacramento International Airport in California.

What is the average price of a flight from Ontario International Airport to California?

We looked at all of the upcoming return flights from Ontario International Airport to California we could find over the next 12 months. It looks like HK$843 is the best price. This is good, compared to the average California ticket price of HK$3,013.

What is the cheapest month to fly from Ontario International Airport to California?

The cheapest month to fly from Ontario International Airport to Bakersfield Airport is currently December.
The cheapest month to fly from Ontario International Airport to Redding Airport is currently December.
The cheapest month to fly from Ontario International Airport to Arcata Airport is currently January.
And the cheapest month to fly from Ontario International Airport to Bishop Airport is usually December.

Which upcoming date is cheapest to fly from Ontario International Airport to California on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ontario International Airport to California on Sunday, 14 December 2025.

If I'm flying from Ontario International Airport, where in California is cheapest to fly into?

If you're flying from Ontario International, the cheapest city in California to fly into is San Francisco. The cheapest airport serving San Francisco at the moment is San Francisco International.