Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

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)
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.
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.

Cheap flights from Chicago to San Francisco in November , December 2026

17 Nov - 15 Dec $ 300.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
18 Nov - 05 Dec $ 312.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
21 Nov - 08 Dec $ 354.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates

Last minute flights from Chicago to San Francisco

18 Nov - 30 Nov $ 389.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
17 Nov - 30 Nov $ 389.00
CHI
Chicago
Frontier Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
21 Nov - 30 Nov $ 693.00
CHI
Chicago
Sun Country Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Sun Country Airlines
1 STOPS
CHI
Chicago
Pick dates

One-way flights to San Francisco from Chicago

6:30 AM - 9:21 AM
Frontier Airlines
1 Stops
6h 47m
CHI - SFO
$ 186
Kiwi
Pick dates
6:30 AM - 9:21 AM
Frontier Airlines
1 Stops
6h 47m
CHI - SFO
$ 186
Kiwi
Pick dates
5:15 AM - 8:13 AM
Frontier Airlines
1 Stops
6h 43m
CHI - SFO
$ 227
Kiwi
Pick dates

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

Related info for your journey
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.
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.