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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 July , August 2026

28 Jul - 27 Aug $ 305.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
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28 Jul - 08 Aug $ 367.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
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25 Jul - 12 Aug $ 685.00
CHI
Chicago
United Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
United Airlines
DIRECT
CHI
Chicago
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Last minute flights from Chicago to San Francisco

28 Jul - 31 Jul $ 386.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
28 Jul - 31 Jul $ 450.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
28 Jul - 31 Jul $ 607.00
CHI
Chicago
United Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
United Airlines
DIRECT
CHI
Chicago
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One-way flights to San Francisco from Chicago

8:50 AM - 8:50 AM
United Airlines
0 Stops
4h 48m
CHI - SFO
$ 237
Kiwi
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8:50 AM - 8:50 AM
United Airlines
0 Stops
4h 48m
CHI - SFO
$ 237
Kiwi
Pick dates
6:10 AM - 6:10 AM
United Airlines
0 Stops
4h 37m
CHI - SFO
$ 239
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.