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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 April , May 2026

15 Apr - 10 May $ 217.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
30 Apr - 06 May $ 251.00
CHI
Chicago
United Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
United Airlines
DIRECT
CHI
Chicago
Pick dates
09 Apr - 02 May $ 382.00
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

15 Apr - 30 Apr $ 251.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
29 Apr - 30 Apr $ 351.00
CHI
Chicago
United Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
United Airlines
DIRECT
CHI
Chicago
Pick dates
12 Apr - 30 Apr $ 1,076.00
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

6:25 AM - 6:25 AM
United Airlines
0 Stops
4h 51m
CHI - SFO
$ 119
Kiwi
Pick dates
8:58 PM - 6:30 AM
Frontier Airlines
1 Stops
13h 25m
CHI - SFO
$ 131
Kiwi
Pick dates
10:30 AM - 10:30 AM
United Airlines
0 Stops
4h 42m
CHI - SFO
$ 232
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.