Flights between Chicago and San Francisco just dropped to $98 roundtrip, including tax. These nonstop fares on Frontier Airlines save more than $100 on the regular cost.

Other airlines, including United and American, are just $30-$50 more on most dates. Although the price is higher, it may actually provide better value depending on your preference to carry-on or check bags, since Frontier charges for carry-on luggage, while United and American do not. Fare Calendars:

Note: Frontier charges for both checked and carry-on luggage, most scenarios are $25-$30 per bag. Check our baggage fee chart for more information.


  • More than $100 OFF the usual price

Travel Dates:

  • Select dates through January 26

Sample Screenshots:

Chicago to San Francisco: Results

Chicago to San Francisco: Results

Chicago to San Francisco: Expedia Booking Page

Chicago to San Francisco: Expedia Booking Page Updates

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