Route Price Intelligence
Cheap Flights From St. Louis to San Francisco
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Nonstop-friendly San Francisco fares out of St. Louis are running about $211 right now on Frontier, down from the roughly $476 this route usually costs, a 56% discount. Availability is opening up over the coming months, and San Francisco gives you everything from the bay to wine country within an easy drive. At under $220 round trip, this is one of the easiest big-city West Coast bookings on the board today.
✓ 9 date combinations found at this price
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Best Time to Fly from St. Louis to San Francisco
The cheapest time to fly from St. Louis to San Francisco is typically August, when fares average around $320. The most expensive month tends to be April at around $491. For the best deals, consider flying in August, September, October.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Planning San Francisco?
Best months to go, what a day on the ground costs, and the tours worth booking.
Read the San Francisco guide →