Fare of the Day: San Francisco to St Louis $186 RT including all taxes

Tracy Stewart, December 14, 2011
Fares from Washington DC, District of Columbia:

    Fly from San Francisco to St Louis for $186 round-trip, including all taxes, on Frontier Airlines.

    This fare is valid for Tuesday/Wednesday travel in January and February. Tickets require a 10-day advance purchase. Seats are limited.

    For booking info, see our fare details.