Direct flights from Ontario to San Francisco

27 nonstop flights a week on 2 airlines. Zero layovers — one hop from ONT to SFO.

Flight time: about 57m nonstop

Which days does it fly?

When does it fly?

Departure times in Ontario local time, from flights observed over the last 7 days.

Flight	Departs	Duration	Days
United UAL2363	6:12a	58m	Thu, Sat
United UAL2363	6:16a	57m	Tue
United UAL2363	6:30a	58m	Mon, Wed, Fri, Sun
United UAL1601	9:10a	57m	Mon–Wed
United UAL1601	9:17a	58m	Fri, Sun
United UAL1601	9:48a	56m	Thu
Frontier FFT1159	12:16p	56m	Thu
Frontier FFT1159	12:34p	56m	Fri
Frontier FFT1159	12:35p	56m	Mon
Frontier FFT1159	1:11p	56m	Sun
United UAL1601	2:05p	57m	Sat
United UAL1375	2:10p	56m	Tue, Fri
United UAL1375	2:19p	56m	Wed
United UAL1375	2:27p	57m	Thu
United UAL1375	2:40p	58m	Mon, Sun
United UAL1375	2:52p	57m	Sat
Frontier FFT1159	3:32p	52m	Tue
United UAL1665	8:08p	1h	Sun

Frontier

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The route

One hop: ONT → SFO

Nonstop from Ontario (ONT) to San Francisco (SFO)

Ontario International Airport (ONT) has 27 nonstop flights a week to San Francisco (SFO), operated by Frontier and United. No layovers, no connections — one hop out of ONT and you're there.

This route flies every day of the week, so any travel day works. Route data updated September 2026 from observed departures.

Route data updated September 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.

How long is the flight from Ontario to San Francisco?

The nonstop flight from Ontario (ONT) to San Francisco (SFO) takes about 57m in the air, based on recently observed nonstop departures.

How long does it take to drive from Ontario to San Francisco?

Driving from Ontario to San Francisco takes about 6h 31m, covering roughly 417 miles. The nonstop flight takes about 57m.

More nonstops from Ontario

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