Flights from Chicago to San Francisco

Cheapest flights from Chicago

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Alaska Airlines
Frontier Airlines
American Airlines
Frontier Airlines
American Airlines
American Airlines
Frontier Airlines
American Airlines
United
Delta
Delta
Delta
Alaska Airlines
Alaska Airlines
United
Frontier Airlines
Alaska Airlines
Delta
JetBlue Airways