FFL Helper

FFL Helper / San Francisco / Ontario

SFO → ONT

San Francisco (SFO) to Ontario (ONT)

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

Lowest fare $19
Distance 371 mi
Flight time 1h 27m
Airports SFO–ONT
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By month: October 2026 from $31 · November 2026 from $33 · December 2026 from $19

Price calendar

October 2026

From $31 · up to $139

Mon
Tue
Wed
Thu
Fri
Sat
Sun
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11
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23 $123 24 $77 25 $77 26 $31 27 $50 28 $50 29 $69 30 $104 31 $139

November 2026

From $33 · up to $114

Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2
3
4
5
6
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16 $33 17 $73 18 $73 19 $73 20 $73 21 $73 22 $73 23 $73 24 $114
25
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30

Upcoming dates

Ontario ONT

$19

Dec 08, 9:56pm · 1h 27m · 0 stops

SFO → ONT · Frontier Airlines

Tickets

Ontario ONT

$31

Oct 26, 6:02pm · 1h 38m · 0 stops

SFO → ONT · Frontier Airlines

Tickets

Ontario ONT

$33

Nov 16, 6:04pm · 1h 26m · 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.