Hello! Traveling with Southwest Airlines STL Terminal using the St. Louis Lambert International Airport (STL) brings one to using Terminal 2 gates E4-E24. Easy to navigate with little stress upon check in or when you come through security for boarding; quite a bit to dine or shop at. If you"re coming from downtown St. Louis, the airport is about 14 miles away, so take your time. Safe travels and enjoy your flight with Southwest!