Cheap Flights from Ontario (ONT) to San Francisco (SFO) from HK$905~

View HK$905 flight on Wed, 11 Mar 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to San Francisco Intl. Airport (SFO)

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Find Cheap Flights from Ontario (ONT) to San Francisco (SFO)

Prices were available within the past 7 days and start at HK$905 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Ontario (ONT) to San Francisco (SFO)

January is typically the cheapest month to fly

From HK$373 - HK$1,236 per traveller.

Frequently asked questions

How much is a flight from ONT to SFO?
If you're traveling between ONT and SFO, round-trip flights start from . This price is based on airfares available within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Los Angeles - Ontario Intl. Airport (ONT) to San Francisco Airport?
We get that things crop up unexpectedly, so we've made it as easy as possible for you to cancel your flight online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Los Angeles - Ontario Intl. Airport (ONT) to San Francisco Intl. Airport (SFO) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for ONT to SFO flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Ontario Airport to San Francisco Airport?
It's only 590 kilometers between Ontario and San Francisco. It's quite possible that you'll spend more time getting to and from the airport than you will actually flying!
Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to San Francisco Airport?
With 121 monthly flights from Ontario Airport to SFO, United Airlines (UA) is a top choice. Frontier Airlines (F9) is also worth checking out. It operates 21 flights per month. Between these two airlines, you'll be able to find a good deal from Ontario to San Francisco.
Are Los Angeles - Ontario Intl. Airport (ONT) to San Francisco Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes nab a bargain, with some of the cheapest fares from Ontario Airport to San Francisco Airport showing up a few weeks before the date of departure. If you'd rather book ahead of time, Expedia compares and updates all the best flight deals continually — as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines issue prices so far in advance.

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
San Francisco Intl.
Airlines serving
American Airlines, Delta, United
Return price
HK$3,272
Distance
582 km
Average flight time
1 hour 41 mins

Book with confidence

Flights from Los Angeles to San Francisco

Book cheap flights from Los Angeles (ONT) to San Francisco (SFO) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Los Angeles (ONT) to San Francisco (SFO) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Los Angeles (ONT) to San Francisco (SFO) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your San Francisco flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in San Francisco and things to do in San Francisco for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to San Francisco more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to San Francisco is HK$905 now!

 

Flights from Los Angeles to San Francisco

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