$158 — Chicago to/from San Francisco (R/T)

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.

Fly.com 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: Fly.com Search Results

ORD-SFO: Fly.com Search Results

Chicago-San Francisco: Priceline Booking Page

ORD-SFO: Priceline Booking Page

San Francisco-Chicago: Fly.com Search Results

SFO-ORD: Fly.com Search Results

San Francisco-Chicago: Priceline Booking Page

SFO-ORD: Priceline Booking Page

Fly.com Updates

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Featured Image: San Francisco with Golden Gate Bridge Featured (Shutterstock.com)

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