MO · STL
Cheap flights from St. Louis
Round trips from $71 per traveler, taxes and fees included. 3 popular routes from St. Louis with fares by month, airlines and the best day to fly.
Popular domestic routes from St. Louis
Lowest round-trip fares over the next three months where we track them, per traveler with taxes and fees.
International flights from St. Louis
Nonstop and one-stop routes to Mexico, the Caribbean, Europe and beyond.
Airports in St. Louis
Hub airlines in St. Louis
Airlines with a hub or focus city here — expect the most nonstop routes and competitive fares from them.
Flying from St. Louis: common questions
Which airlines fly from St. Louis?
Southwest Airlines operates a hub or focus city in St. Louis, which means plenty of nonstop routes and competitive fares. Most other US airlines fly there too; each route page lists the carriers for that city pair.
What is the cheapest flight from St. Louis?
Among the popular routes we track, the lowest round-trip fare from St. Louis over the next three months is $71 per traveler including taxes and fees. Short domestic hops are usually the cheapest; see the deals page for the best dates.
How early should I get to STL?
Arrive two hours before a domestic departure and three hours before an international one. TSA PreCheck members can usually cut that by 30 minutes at STL.