Air Miles Calculator

Distance between Houston, TX (IAH) and Washington D.C. (IAD)

Distance from Houston to Washington D.C. (Houston George Bush Intercontinental Airport – Washington Dulles International Airport) is 1190 miles / 1915 kilometers / 1034 nautical miles.

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)
  • 1190.057 miles
  • 1915.211 kilometers
  • 1034.131 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
  • 1188.919 miles
  • 1913.380 kilometers
  • 1033.143 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).

Flight duration

Estimated flight time from Houston George Bush Intercontinental Airport (IAH) to Washington Dulles International Airport (IAD) is 2 hours 45 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.

Time Difference

Houston
Washington D.C.

Houston, TX

 CDT

Washington D.C.

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 161 kg (355 pounds).

Airport information


A Houston George Bush Intercontinental Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″W

B Washington Dulles International Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″W

Houston to Washington D.C. flight path

Shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Washington Dulles International Airport (IAD).

Frequent Flyer Miles Calculator

Houston (IAH) → Washington D.C. (IAD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1190
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1190

Round trip?