What is the flight distance between STL and DCA?

Distance between Lambert-St. Louis International Airport (STL) and Ronald Reagan National Airport (DCA) is 1155 kilometers or 718 miles.

Distance From Lambert-St. Louis International Airport to Ronald Reagan National Airport (STL - DCA Distance)

Q: How long is the flight from STL to DCA?

Flight time from Lambert-St. Louis International Airport, Saint Louis, United States to Ronald Reagan National Airport, Washington, United States is 1 hours 26 minutes under avarage conditions.

Q: What is the time difference between Saint Louis, United States and Washington, United States?

Time difference between Saint Louis (United States) and Washington (United States) is 0 Hours. It is currently 23:07 in Lambert-St. Louis International Airport (STL) and 23:07 in Ronald Reagan National Airport (DCA).

The flight distance from Lambert-St. Louis International Airport (STL) to Ronald Reagan National Airport (DCA) is 718 miles. This is equivalent to 1155 kilometers or 623 nautical miles. The distance shown below is the straight line distance (may be called as flying or air distance) or direct flight distance between airports.

1155 kilometers is the distance from Lambert-St. Louis International Airport, United States to Ronald Reagan National Airport, United States.

Flight Duration between Saint Louis, United States and Washington, United States

Estimated flight time from Lambert-St. Louis International Airport, Saint Louis, United States to Ronald Reagan National Airport, Washington, United States is 1 hours 26 minutes under avarage conditions. The flight time calculator assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/hr or 434 knots. Your actual flying time may vary depending on wind speeds or weather conditions.

Time Difference Between the Airports • STL - DCA

Time difference between Saint Louis (United States) and Washington (United States) is 0 Hours.
Current local time in Saint Louis is 2025-08-10, 23:07:41 EDT and time in Washington is 2025-08-10, 23:07:41 EDT.

Lambert-St. Louis International Airport to Ronald Reagan National Airport Flight Route Map - STL to DCA Flight Path

Location of Lambert-St. Louis International Airport & Ronald Reagan National Airport is given below.
Click the map to view Saint Louis to Washington nonstop flight path and travel direction.

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Click to see flight route on Google Map between Saint Louis, United States and Washington, United States. .

Nonstop flight route between Saint Louis, United States and Washington, United States.

Lambert-St. Louis International Airport
City:	Saint Louis
Country:	United States
IATA Code:	STL
ICAO Code:	KSTL
GPS Coordinates:	Latitude: N 38° 44' 55.3'' Longitude: W 90° 22' 12.1''
Current time:	2025-08-10, 23:07:41 EDT
Current weather:	Lambert-St. Louis International Airport 15 day weather forecast

Ronald Reagan National Airport
City:	Washington
Country:	United States
IATA Code:	DCA
ICAO Code:	KDCA
GPS Coordinates:	Latitude: N 38° 51' 7.5'' Longitude: W 77° 2' 15.8''
Current time:	2025-08-10, 23:07:41 EDT
Current weather:	Ronald Reagan National Airport 15 day weather forecast
Flights: