How to find the cheapest flight from
San Francisco (SFO) to St. Denis (RUN)
What is the cheapest day to fly round-trip from San Francisco to St. Denis?
Thursday flights are generally found to be more expensive for flights from San Francisco to St. Denis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Denis.
When is the cheapest time to fly from San Francisco to St. Denis (SFO - RUN)?
When flying from San Francisco to St. Denis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Related info for your journey
Useful info, stats and facts about San Francisco to St. Denis flights.
Alternative routes for San Francisco to St. Denis
Destination information for St. Denis
Things to know before you go. Useful info for your trip from San Francisco to St. Denis