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Cheap flights from Chicago (CHI) to San Francisco (SFO)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Chicago (CHI) to San Francisco (SFO)

How to find the cheapest flight from Chicago (CHI) to San Francisco (SFO)
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How to find the cheapest flight from Chicago (CHI) to San Francisco (SFO)
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How to find the cheapest flight from Chicago (CHI) to San Francisco (SFO)
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Cheap flights from Chicago to San Francisco in February , March 2026

26 Feb - 07 Mar $ 215.00
CHI
Chicago
United Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
United Airlines
DIRECT
CHI
Chicago
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10 Feb - 04 Mar $ 255.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
08 Feb - 07 Mar $ 568.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to San Francisco

25 Feb - 28 Feb $ 229.00
CHI
Chicago
Hawaiian Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Hawaiian Airlines
1 STOPS
CHI
Chicago
Pick dates
10 Feb - 28 Feb $ 349.00
CHI
Chicago
Alaska Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Alaska Airlines
1 STOPS
CHI
Chicago
Pick dates
09 Feb - 28 Feb $ 768.00
CHI
Chicago
Hawaiian Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Hawaiian Airlines
1 STOPS
CHI
Chicago
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One-way flights to San Francisco from Chicago

5:00 PM - 5:00 PM
United Airlines
0 Stops
5h
CHI - SFO
$ 109
Kiwi
Pick dates
11:51 AM - 6:50 PM
Frontier Airlines
1 Stops
11h 48m
CHI - SFO
$ 181
Kiwi
Pick dates
12:45 PM - 12:45 PM
United Airlines
0 Stops
4h 50m
CHI - SFO
$ 411
Kiwi
Pick dates

How to find the cheapest flight from Chicago (CHI) to San Francisco (SFO)

Related info for your journey
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How to find the cheapest flight from Chicago (CHI) to San Francisco (SFO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to San Francisco (SFO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.