How far is Washington D.C. from St Louis, MO?
The distance between St Louis (St. Louis Lambert International Airport) and Washington D.C. (Washington Dulles International Airport) is 696 miles / 1120 kilometers / 605 nautical miles.
The driving distance from St Louis (STL) to Washington D.C. (IAD) is 814 miles / 1310 kilometers, and travel time by car is about 15 hours 34 minutes.
St. Louis Lambert International Airport – Washington Dulles International Airport
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Distance from St Louis to Washington D.C.
There are several ways to calculate the distance from St Louis to Washington D.C.. Here are two standard methods:
Vincenty's formula (applied above)- 696.181 miles
- 1120.395 kilometers
- 604.965 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 694.488 miles
- 1117.670 kilometers
- 603.494 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from St Louis to Washington D.C.?
The estimated flight time from St. Louis Lambert International Airport to Washington Dulles International Airport is 1 hour and 49 minutes.
What is the time difference between St Louis and Washington D.C.?
Flight carbon footprint between St. Louis Lambert International Airport (STL) and Washington Dulles International Airport (IAD)
On average, flying from St Louis to Washington D.C. generates about 124 kg of CO2 per passenger, and 124 kilograms equals 274 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from St Louis to Washington D.C.
See the map of the shortest flight path between St. Louis Lambert International Airport (STL) and Washington Dulles International Airport (IAD).
Airport information
| Origin | St. Louis Lambert International Airport |
|---|---|
| City: | St Louis, MO |
| Country: | United States  |
| IATA Code: | STL |
| ICAO Code: | KSTL |
| Coordinates: | 38°44′55″N, 90°22′12″W |
| Destination | Washington Dulles International Airport |
|---|---|
| City: | Washington D.C. |
| Country: | United States |
| IATA Code: | IAD |
| ICAO Code: | KIAD |
| Coordinates: | 38°56′40″N, 77°27′20″W |
Airlines flying from St Louis (STL) to Washington D.C. (IAD)
| United Airlines |