How far is Washington D.C. from Houston?
There are several ways to calculate distances between Houston and Washington D.C.. Here are two common methods:Vincenty's formula (applied above)
- 1200.933 miles
- 1932.715 kilometers
- 1043.582 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
- 1199.887 miles
- 1931.031 kilometers
- 1042.674 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 William P. Hobby Airport (HOU) to Washington Dulles International Airport (IAD) is 2 hours 46 minutes.
Time difference and current local times
The time difference between Houston and Washington D.C. is 1 hour. Washington D.C. is 1 hour ahead of Houston.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 161 kg (356 pounds).
Houston to Washington D.C. flight map.
Frequent Flyer Miles Calculator
Houston (HOU) → Washington D.C. (IAD).