Good to Know: ONT to SFO Flights
Useful information for finding cheap flights from Ontario International to San Francisco International and booking your next trip
Cheapest One way Flight
$236
Alaska Airlines
• 1 stop
• 10h 40m
Jul 12
The cheapest one way flight from Ontario International to San Francisco International is currently $236
Fastest Flight
8h 49m
The fastest nonstop flight from Ontario International to San Francisco International takes 8h 49m
Best Flight Deals from Ontario to San Francisco
Explore the lowest round-trip fares from Ontario to San Francisco. We've compared hundreds of airlines and travel sites so you don't have to.
Whether you're moving or just visiting, here are some of the best one-way flight options from ONT to SFO—searched and filtered with flexibility in mind.
Need to fly soon? We've surfaced some of the most affordable last-minute flights from Ontario to San Francisco, ideal for urgent plans or spontaneous trips.
Looking for the fastest way to San Francisco? These direct flight options from ONT to SFO offer both convenience and value—no layovers, just straight to your destination.
FAQs on Ontario to San Francisco Flights
What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to SFO?
The most popular airline flying from Ontario to San Francisco are
Can I fly from ONT to SFO non-stop?
NO
Which airlines fly nonstop between Ontario and San Francisco?
The non-stop flights between Ontario and San Francisco are .
What’s the earliest departure time from ONT to SFO Airport?
The earliest flight leaves ONT at 7:30 am and lands in SFO - San Francisco International
What are the airports in San Francisco?
SFO
Can I make changes to my Ontario to San Francisco flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to SFO?
Read the fare rules of the Ontario to San Francisco air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and San Francisco?
operate flights between Ontario and San Francisco
How long does a flight from Ontario to San Francisco take?
It takes approximately 1 hour to fly non-stop from ONT to SFO, which is 363.46 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to San Francisco (SFO) ?
In the past couple of days, the cheapest tickets to SFO from ONT were found on ('AS') : USD 286
Do I need a passport to fly between ONT and SFO?
No
What’s the latest departure time from ONT to SFO ?
The last flight leaves ONT at 6:10 pm
Flights from Ontario to San Francisco
| Origin Airport | Ontario International , Ontario, US |
| Destination Airport | San Francisco International , San Francisco, US |
| Distance | miles |
Popular Airlines
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