Are you searching for American Airlines flights from Philadelphia to Saint Louis? Find the best selections and fly in style.

Find the best deals on flights from Philadelphia International (PHL) to St Louis (STL). Compare prices from hundreds of major travel agents and airlines, all in one search.

Cheap Flights from Philadelphia (PHL) to St. Louis (STL) start at $60 for one-way and $120 for round trip. Earn your airline miles on top of our rewards!

Philadelphia International Airport (PHL) to Lambert-St. Louis International Airport (STL) is the most popular route. There are 35 direct departures a week to pick from. If you prefer a later …

Fly one-way from Philadelphia to St. Louis starting at $169. Bundle your Southwest Airlines® flight with a hotel or rental car booking and find even more savings.

Flights from Philadelphia to St. Louis. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Philadelphia to St. Louis.

All direct (non-stop) flights from Philadelphia to St. Louis. See airlines, aircrafts, flight time and distance, flight schedules and timetables.

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Philadelphia to St. Louis. Discover the best prices and deals for you by selecting …

Compare cheap flights and find tickets from Philadelphia (PHL) to St Louis (STL). Book directly with no added fees.

Philadelphia (PHL) to Saint Louis (STL) flight schedule. The monthly calendar shows every direct flight departure from Philadelphia International Airport (PHL) with all airlines. Click on a date to …