MO · STL
Cheap flights to St. Louis
Round trips from $69 per traveler, taxes and fees included. Compare fares from every US city, see which airlines fly nonstop, and pick the cheapest month to travel.
Popular routes to St. Louis
Lowest round-trip fares we found over the next three months, per traveler with taxes and fees. Select a route for airlines, flight times and fares by month.
Airports in St. Louis
Airlines flying to St. Louis
Carriers with nonstop service on the routes above.
Flying to St. Louis: common questions
Which airport should I fly into for St. Louis?
St. Louis Lambert International Airport (STL) is the airport for St. Louis. Every fare we show for St. Louis lands there.
Which airlines fly to St. Louis?
American Airlines, United Airlines, Southwest Airlines, Frontier Airlines, Sun Country Airlines and Breeze Airways and others fly nonstop to St. Louis from major US cities, with more airlines offering one-stop itineraries. Route pages list the airlines for each departure city.
How much are flights to St. Louis?
Over the next three months, the lowest round-trip fare we track to St. Louis is $69 per traveler including taxes and fees. Fares vary by departure city, day of week and how far ahead you book — see each route page for the cheapest month.