FFL Helper

FFL Helper / San Francisco / Ontario

SFO → ONT

San Francisco to Ontario

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

Lowest fare $23
Distance 371 mi
Flight time 1h 34m
Airports SFO–ONT
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By month: August 2026 from $99 · September 2026 from $23

Price calendar

August 2026

From $99 · up to $158

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27 $157 28 $158 29 $158 30 $157 31 $99

September 2026

From $23 · up to $81

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Tue
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1 $78 2 $81 3 $52 4 $52 5 $52 6 $52 7 $52 8 $52 9 $52 10 $52 11 $52 12 $52 13 $52 14 $52 15 $52 16 $52 17 $52 18 $52 19 $52 20 $52 21 $52 22 $52 23 $52 24 $52 25 $52 26 $52 27 $52 28 $23
29
30

Upcoming dates

Ontario ONT

$23

Sep 28, 6:02pm · 1h 34m · 0 stops

SFO → ONT · Frontier Airlines

Tickets

About this route

This calendar shows dated one-way fares from San Francisco to Ontario. 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 San Francisco to Ontario.