DCA to STL: Distance and Flight Time
The distance from Ronald Reagan Washington National Airport (DCA) to St. Louis Lambert International Airport (STL) is 1,154 km (717 mi). A typical nonstop flight covers it in about 1h 55m, heading west. The distance is the same in either direction (STL to DCA).
How far is it from Washington to St Louis?
The great-circle distance between Ronald Reagan Washington National Airport (DCA) and St. Louis Lambert International Airport (STL) is 1,154 km (717 mi, 623 nautical miles). That is the straight-line distance; a real flight is a little longer because of air-traffic routing.
How long is the flight from DCA to STL?
A nonstop flight typically takes about 1h 55m. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. STL is roughly west of DCA.
How is the DCA to STL route written in code?
The pair is written DCA-STL in IATA codes and KDCA-KSTL in ICAO codes, the form used on a flight plan. Ronald Reagan Washington National Airport is DCA (KDCA), St. Louis Lambert International Airport is STL (KSTL).
| DCA | STL | |
|---|---|---|
| Airport | Ronald Reagan Washington National Airport | St. Louis Lambert International Airport |
| ICAO code | KDCA | KSTL |
| Country | United States | United States |
| Elevation | 15 ft | 618 ft |
| Rank by connections | #70 | #145 |
Both ICAO codes start with K, the prefix ICAO assigns to the contiguous United States, so this is a route inside one ICAO region. How ICAO prefixes are laid out.
STL sits 603 ft (184 m) higher than DCA, which is a real difference in air density on takeoff.
Airlines flying DCA to STL
1 airline appear on this route in the open route dataset, 1 of them still listed as active. Each row gives the IATA code, the ICAO code and the radio callsign, which is what an air traffic controller hears:
| IATA | Airline | ICAO | Callsign | Status |
|---|---|---|---|---|
| WN | Southwest Airlines | SWA | Southwest | Active |
A further 2 carriers sell this pair as a codeshare without operating it: AA, US.
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
How far is Washington from St Louis?
Ronald Reagan Washington National Airport (DCA) and St. Louis Lambert International Airport (STL) are 1,154 km (717 mi, 623 nautical miles) apart in a straight line.
How long is the flight from DCA to STL?
A typical nonstop flight between DCA and STL takes about 1h 55m. Actual times vary with aircraft type, winds and routing.
What direction is STL from DCA?
St. Louis Lambert International Airport (STL) lies roughly west of Ronald Reagan Washington National Airport (DCA).
Which airlines fly DCA to STL?
1 airline appear on the DCA-STL route in the open dataset, including Southwest Airlines.
Related routes
Other routes from Washington (DCA):
Other routes from St Louis (STL):
DCA airport code · STL airport code · Busiest airports worldwide