
Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to San Francisco International Airport (SFO)
- American Airlines
American Airlines
- Alaska Airlines
Alaska Airlines
- Delta
Delta
- United
United
- Plan, book, fly with confidence
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Cheap flights from Ontario (ONT) to San Francisco (SFO)
Prices were available within the past 7 days and start at CA $93 for one-way flights and CA $173 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)
August is typically the cheapest month to fly
Graph displaying average flight prices per month
Origin airport | Los Angeles - Ontario Intl. |
Destination airport | San Francisco Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, United |
Roundtrip price | CA $173 |
Distance | 582 km |
Average flight time | 1 hour 28 mins |
Los Angeles to San Francisco Flights
The easy way to book your flights from Ontario to San Francisco
With Expedia, it’s simple to find and book flights to San Francisco from Ontario whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to San Francisco Intl., too.
Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ontario to San Francisco today, tomorrow, or this week.
Save dollars with cheap flights from Los Angeles - Ontario Intl., ONT to San Francisco Intl., SFO
Sort your search results by price to find great deals on your flight from Ontario to San Francisco—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to San Francisco from Ontario currently is just CA $173 rising to CA $536.
Here are more money-saving tips:
- Fly in August when flight prices are normally at their lowest
- Book about a month to 6 weeks before you travel for the best prices to San Francisco
- Avoid peak season and weekends when flights can cost more
- Early morning and late-night flights are sometimes cheaper, so try varying your travel times
- One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!
Reasons to choose Expedia for your flight to San Francisco from Ontario
Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to San Francisco with Expedia today.
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Top Routes from Ontario
- Ontario to Shanghai (ONT - PVG)
- Ontario to Calgary (ONT - YYC)
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- Ontario to Milwaukee (ONT - MKE)
- Ontario to Taipei (ONT - TPE)
- Ontario to Manila (ONT - MNL)
- Ontario to Seattle (ONT - SEA)
- Ontario to New York (ONT - JFK)
- Ontario to Tokyo (ONT - NRT)
- Ontario to Vancouver (ONT - YVR)
Top Routes to San Francisco
- Ottawa to San Francisco (YOW - SFO)
- Calgary to San Francisco (YYC - SFO)
- Detroit to San Francisco (DTW - SFO)
- Saskatoon to San Francisco (YXE - SFO)
- Winnipeg to San Francisco (YWG - SFO)
- Halifax to San Francisco (YHZ - SFO)
- Victoria to San Francisco (YYJ - SFO)
- Seattle to San Francisco (SEA - SFO)
- Montreal to San Francisco (YUL - SFO)
- Buffalo to San Francisco (BUF - SFO)
- Vancouver to San Francisco (YVR - SFO)
- Kitchener to San Francisco (YKF - SFO)
Top Routes from Ontario
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