Cheap STL to Tri-Cities flights

Book your STL to TRI flights with Expedia and find last-minute St. Louis to Tri-Cities airfare. Expedia offers discount airfare on multiple airline carriers that fly direct and indirect routes between STL and TRI, with new flight deals and promotions almost daily. When you book your next trip from Lambert St. Louis Intl. to Tri Cities Regional with Expedia, you can rest assured you’re getting great ticket prices and excellent service from one of the world’s most trusted travel providers.

Popular Flights from St. Louis, Missouri

Browse popular flight destinations from St. Louis (STL), and plan your next exciting trip. Expedia has cheap flights from St. Louis on multiple airline carriers, so book your next trip today!

STL to TRI Route Map

St. Louis to Tri-Cities Flights, Stats and Airplanes

Route information for flights from Lambert St. Louis Intl. to Tri Cities Regional.

Distance:
463.04 miles

STL - Lambert St. Louis Intl. Airlines

Browse the most popular airlines servicing the St. Louis (STL) airport. Visit their flights pages to learn more about the most popular routes these carriers fly.

TRI - Tri Cities Regional Airlines

Browse the most popular airlines servicing the Tri-Cities (TRI) airport. Visit their flights pages to learn more about the most popular routes these carriers fly.