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Southwest · St. Louis Lambert International Airport · STL

Southwest nonstop flights from St. Louis

46 nonstop destinations on Southwest out of STL — 55% of everything that departs. Zero layovers, zero connections.

46
Nonstop cities
55%
of STL departures
757
Flights / week
STL
Your origin

Where Southwest can take you

Dashed arcs = Southwest nonstop routes from STL · updates with the day filter
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All nonstop destinations from St. Louis (STL) every airline, not just Southwest

Everywhere Southwest flies 121 airports

Where can you fly nonstop on Southwest from St. Louis (STL)?

Southwest flies 46 nonstop routes from St. Louis Lambert International Airport (STL), around 757 departures a week — 55% of everything leaving STL.

Its busiest is St. Louis to Denver at 44 Southwest flights a week. 27 of these 46 destinations have no other nonstop operator from STL, so Southwest is the only way to reach them without a connection.

Use the day filter above to see which Southwest routes fly on the day you want to travel. Route data updated November 2026 from observed departures.

Frequencies shown are Southwest's own departures, counted from observed schedules. Schedules change — always confirm with the airline before booking.