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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)
Save up to 31%
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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 August , September 2026

22 Aug - 09 Sep $ 263.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
22 Aug - 07 Sep $ 355.00
CHI
Chicago
United Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
United Airlines
DIRECT
CHI
Chicago
Pick dates
18 Aug - 16 Sep $ 455.00
CHI
Chicago
United Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
United Airlines
DIRECT
CHI
Chicago
Pick dates

Last minute flights from Chicago to San Francisco

19 Aug - 31 Aug $ 359.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
22 Aug - 31 Aug $ 365.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
26 Aug - 31 Aug $ 607.00
CHI
Chicago
United Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
United Airlines
DIRECT
CHI
Chicago
Pick dates

One-way flights to San Francisco from Chicago

10:35 AM - 10:35 AM
United Airlines
0 Stops
4h 36m
CHI - SFO
$ 237
Kiwi
Pick dates
10:35 AM - 10:35 AM
United Airlines
0 Stops
4h 36m
CHI - SFO
$ 237
Kiwi
Pick dates
10:35 AM - 10:35 AM
United Airlines
0 Stops
4h 36m
CHI - SFO
$ 237
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.