Direct flights from Ontario to San Francisco ONT → SFO
Frontier Airlines and United Airlines fly nonstop from Ontario (ONT) to San Francisco (SFO). The flight takes about 1h 15m and covers 364 miles (585 km). Arrivals run on time 78.9% at ONT and 64.6% at SFO — BTS data for the last three months, counting arrivals within 15 minutes of schedule.
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Frontier Airlines
F9
United Airlines
UA
Frequently asked questions
Is there a direct flight from Ontario to San Francisco?
Yes, Frontier Airlines and United Airlines operate nonstop flights from Ontario (ONT) to San Francisco (SFO).
Which airlines fly direct from Ontario to San Francisco?
Frontier Airlines, United Airlines operate nonstop flights from Ontario to San Francisco.
How long is the flight from Ontario to San Francisco?
The nonstop flight from Ontario to San Francisco takes ~1h 15m (approximately 585 km).
What is the on-time performance for flights from Ontario to San Francisco?
Arrivals run on time 78.9% at ONT and 64.6% at SFO — BTS data for the last three months, counting arrivals within 15 minutes of schedule.
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