How far is Washington D.C. from St Louis?
There are several ways to calculate distances between St Louis and Washington D.C.. Here are two common 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 earth.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).
Estimated flight time from St. Louis Lambert International Airport (STL) to Washington Dulles International Airport (IAD) is 1 hour 49 minutes.
Time difference and current local times
The time difference between St Louis and Washington D.C. is 1 hour. Washington D.C. is 1 hour ahead of St Louis.
St Louis, MO
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 124 kg (274 pounds).
|A||St. Louis Lambert International Airport|
|City:||St Louis, MO|
|B||Washington Dulles International Airport|
St Louis to Washington D.C. flight map.
Frequent Flyer Miles Calculator
St Louis (STL) → Washington D.C. (IAD).