FFL Helper

FFL Helper / Ontario / San Francisco

ONT → SFO

Ontario to San Francisco

Compare one-way fares for flights from Ontario to San Francisco.

Lowest fare $46
Distance 371 mi
Flight time 1h 36m
Airports ONT–SFO
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By month: August 2026 from $145 · September 2026 from $46

Price calendar

August 2026

From $145 · up to $157

Mon
Tue
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Sun
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27 $157 28 $151 29 $145
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31

September 2026

From $46 · up to $81

Mon
Tue
Wed
Thu
Fri
Sat
Sun
1 $81 2 $81 3 $63 4 $63 5 $63 6 $63 7 $63 8 $63 9 $63 10 $63 11 $63 12 $63 13 $63 14 $63 15 $63 16 $63 17 $63 18 $63 19 $63 20 $63 21 $46 22 $52 23 $52 24 $52 25 $52 26 $52 27 $52 28 $52 29 $52 30 $58

Upcoming dates

San Francisco SFO

$46

Sep 21, 12:07pm · 1h 36m · 0 stops

ONT → SFO · Frontier Airlines

Tickets

San Francisco SFO

$58

Sep 30, 10:04am · 4h 25m · 1 stop

ONT → SFO · Frontier Airlines

Tickets

About this route

This calendar shows dated one-way fares from Ontario to San Francisco. Use it to see which days are cheaper before you search tickets.

Flight time and airport codes on this page are for the sample itinerary we have on file. Always confirm the live routing when you book Ontario to San Francisco.