Flights between Chicago and San Francisco are now just $158 roundtrip, including tax, on Frontier Airlines. Today’s price will save you up to $125 on the usual cost.

Travel select dates in September and October. Fare Calendars:

All flights are roundtrip, including tax:


  • Frontier charges for both checked and carry-on bags, usually $25-$35 for the first item. Frontier Discount Den email subscribers receive discounts on baggage fees and flights, so it’s worth signing up.
  • For more baggage information click here.


  • Up to $125 OFF the usual cost

Travel Dates:

  • To San Francisco: Aug. 30 to Oct. 20
  • To Chicago: Sept. 8 to Oct. 20
  • Travel is available over Thanksgiving as well as MLK Day & Presidents Day weekends

Sample Screenshots:

Chicago-San Francisco: Search Results

ORD-SFO: Search Results

Chicago-San Francisco: Priceline Booking Page

ORD-SFO: Priceline Booking Page

San Francisco-Chicago: Search Results

SFO-ORD: Search Results

San Francisco-Chicago: Priceline Booking Page

SFO-ORD: Priceline Booking Page Updates

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Featured Image: San Francisco with Golden Gate Bridge Featured (

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Kim has been hunting flight deals and writing travel articles for over 13 years. His articles have appeared in the Boston Herald, Chicago Daily Herald, and Frommer’s Budget Travel, among other publications. Amsterdam, Bangkok, Rome, and Sydney are some of his favorite destinations and he aspires to one day live in Italy. La dolce vita!

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