56 destinations have scheduled flights from STL, about 1,154 departures a week. Weekly frequencies come from airline schedules and observed departures, not live status.
| Destination | Flights per week | Airlines | Typical duration |
|---|---|---|---|
| Chicago O'Hare International Airport (ORD) | 86 | Albatross Airlines, Envoy Air Inc., American Airlines, Delta Air Lines, SkyWest Airlines | — |
| Denver International Airport (DEN) | 81 | Southwest Airlines Co., Albatross Airlines, Frontier Airlines, Inc. | — |
| LaGuardia Airport (LGA) | 55 | Southwest Airlines Co., Delta Air Lines, American Airlines | — |
| Phoenix Sky Harbor International Airport (PHX) | 55 | Southwest Airlines Co., American Airlines, Frontier Airlines, Inc. | — |
| Hartsfield Jackson Atlanta International Airport (ATL) | 53 | Delta Air Lines, Southwest Airlines Co., Frontier Airlines, Inc. | — |
| Harry Reid International Airport (LAS) | 45 | Southwest Airlines Co., Frontier Airlines, Inc. | — |
| Orlando International Airport (MCO) | 43 | Southwest Airlines Co., Frontier Airlines, Inc. | — |
| Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP) | 43 | Delta Air Lines, Southwest Airlines Co. | — |
| Ronald Reagan Washington National Airport (DCA) | 41 | Southwest Airlines Co., American Airlines | — |
| Detroit Metropolitan Wayne County Airport (DTW) | 37 | Delta Air Lines, Southwest Airlines Co. | — |
| Boston Logan International Airport (BOS) | 36 | Southwest Airlines Co., Envoy Air Inc., American Airlines | — |
| Philadelphia International Airport (PHL) | 35 | Southwest Airlines Co., American Airlines | — |
| Dallas Love Field (DAL) | 34 | Southwest Airlines Co. | — |
| Dallas Fort Worth International Airport (DFW) | 34 | American Airlines, Envoy Air Inc. | — |
| Chicago Midway International Airport (MDW) | 30 | Southwest Airlines Co. | — |
| Charlotte Douglas International Airport (CLT) | 25 | American Airlines | — |
| Austin Bergstrom International Airport (AUS) | 24 | Southwest Airlines Co. | — |
| William P. Hobby Airport (HOU) | 23 | Southwest Airlines Co. | — |
| Nashville International Airport (BNA) | 22 | Southwest Airlines Co. | — |
| Baltimore/Washington International Thurgood Marshall Airport (BWI) | 20 | Southwest Airlines Co. | — |
| Southwest Florida International Airport (RSW) | 20 | Southwest Airlines Co. | — |
| Miami International Airport (MIA) | 18 | American Airlines, Southwest Airlines Co. | — |
| Kansas City International Airport (MCI) | 17 | Southwest Airlines Co. | — |
| Tampa International Airport (TPA) | 17 | Southwest Airlines Co., Frontier Airlines, Inc. | — |
| Fort Lauderdale Hollywood International Airport (FLL) | 15 | Southwest Airlines Co., Frontier Airlines, Inc. | — |
| John Glenn Columbus International Airport (CMH) | 13 | Southwest Airlines Co. | — |
| Pittsburgh International Airport (PIT) | 13 | Southwest Airlines Co. | — |
| Raleigh-Durham International Airport (RDU) | 13 | Southwest Airlines Co. | — |
| Salt Lake City International Airport (SLC) | 13 | Delta Air Lines | — |
| Toronto Pearson International Airport (YYZ) | 13 | Air Canada | — |
| Cleveland Hopkins International Airport (CLE) | 12 | Southwest Airlines Co. | — |
| Eppley Airfield (OMA) | 12 | Southwest Airlines Co. | — |
| Sarasota Bradenton International Airport (SRQ) | 12 | Southwest Airlines Co. | — |
| Louis Armstrong New Orleans International Airport (MSY) | 11 | Southwest Airlines Co. | — |
| San Antonio International Airport (SAT) | 11 | Southwest Airlines Co. | — |
| Seattle–Tacoma International Airport (SEA) | 11 | Alaska Airlines | — |
| Newark Liberty International Airport (EWR) | 10 | Albatross Airlines | — |
| General Mitchell International Airport (MKE) | 10 | Southwest Airlines Co. | — |
| Northwest Florida Beaches International Airport (ECP) | 8 | Southwest Airlines Co. | — |
| Washington Dulles International Airport (IAD) | 7 | Albatross Airlines | — |
| George Bush Intercontinental Airport (IAH) | 7 | Albatross Airlines | — |
| Jacksonville International Airport (JAX) | 7 | Southwest Airlines Co. | — |
| Charleston International Airport (CHS) | 6 | Southwest Airlines Co. | — |
| Jonesboro Municipal Airport (JBR) | 6 | Congo Express | — |
| Los Angeles International Airport (LAX) | 6 | Southwest Airlines Co. | — |
| Montreal / Pierre Elliott Trudeau International Airport (YUL) | 6 | Air Canada | — |
| Frederick W. Smith International Airport (MEM) | 5 | Four Island Air | — |
| Louisville Muhammad Ali International Airport (SDF) | 5 | UPS Airlines | — |
| Indianapolis International Airport (IND) | 4 | Four Island Air | — |
| Pensacola International Airport (PNS) | 4 | Southwest Airlines Co. | — |
| Chicago Rockford International Airport (RFD) | 4 | UPS Airlines | — |
| San Francisco International Airport (SFO) | 4 | Albatross Airlines | — |
| Perot Field/Fort Worth Alliance Airport (AFW) | 3 | Four Island Air | — |
| Cancún International Airport (CUN) | 3 | Southwest Airlines Co. | — |
| Frankfurt Main Airport (FRA) | 3 | Lufthansa Cargo | — |
| London Heathrow Airport (LHR) | 3 | British Airways | — |
GET /routes returns each scheduled flight from STL: airline, flight number, departure and arrival time, duration, days of operation and aircraft type.
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