RM501 Cheap Flights from Ontario (ONT) to San Francisco (SFO)

View RM501 flight on Mon, 1 Jun 2026Opens in a new window

Flight 1

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

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

Prices were available within the past 7 days and start at RM501 for one-way flights and RM1,001 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 30 Apr - Thu, 7 May
ONT
Ontario
SFO
San Francisco
RM1,001 Return, found 3 days ago
RM1,001
Return
found 3 days ago
Select United flight, departing Thu, 30 Apr from Ontario to San Francisco, returning Thu, 7 May, priced at RM1,001 found 3 days ago
United
Thu, 30 Apr - Thu, 7 May
ONT
Ontario
SFO
San Francisco
RM1,249 Return, found 3 days ago
RM1,249
Return
found 3 days ago
Select United flight, departing Thu, 30 Apr from Ontario to San Francisco, returning Thu, 7 May, priced at RM1,249 found 3 days ago
Delta
Thu, 30 Apr - Thu, 7 May
ONT
Ontario
SFO
San Francisco
RM1,479 Return, found 3 days ago
RM1,479
Return
found 3 days ago
Select Delta flight, departing Thu, 30 Apr from Ontario to San Francisco, returning Thu, 7 May, priced at RM1,479 found 3 days ago
Delta
Thu, 30 Apr - Thu, 7 May
ONT
Ontario
SFO
San Francisco
RM1,502 Return, found 3 days ago
RM1,502
Return
found 3 days ago
Select Delta flight, departing Thu, 30 Apr from Ontario to San Francisco, returning Thu, 7 May, priced at RM1,502 found 3 days ago
United
Thu, 30 Apr - Thu, 7 May
ONT
Ontario
SFO
San Francisco
RM1,649 Return, found 3 days ago
RM1,649
Return
found 3 days ago
Select United flight, departing Thu, 30 Apr from Ontario to San Francisco, returning Thu, 7 May, priced at RM1,649 found 3 days ago
Delta
Thu, 30 Apr - Thu, 7 May
ONT
Ontario
SFO
San Francisco
RM1,726 Return, found 3 days ago
RM1,726
Return
found 3 days ago
Select Delta flight, departing Thu, 30 Apr from Ontario to San Francisco, returning Thu, 7 May, priced at RM1,726 found 3 days ago
Delta
Thu, 30 Apr - Thu, 7 May
ONT
Ontario
SFO
San Francisco
RM1,749 Return, found 3 days ago
RM1,749
Return
found 3 days ago
Select Delta flight, departing Thu, 30 Apr from Ontario to San Francisco, returning Thu, 7 May, priced at RM1,749 found 3 days ago
Delta
Thu, 30 Apr - Thu, 7 May
ONT
Ontario
SFO
San Francisco
RM1,794 Return, found 3 days ago
RM1,794
Return
found 3 days ago
Select Delta flight, departing Thu, 30 Apr from Ontario to San Francisco, returning Thu, 7 May, priced at RM1,794 found 3 days ago

Frequently asked questions

How much is a flight from ONT to SFO?
If you're travelling between ONT and SFO, round-trip flights start from RM1,001. 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 kilometres 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.
Return price
RM1,001
Distance
582 km
Average flight time
1 hour 33 mins

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