# Distance between Houston, TX (HOU) and Washington D.C. (DCA)

Flight distance from Houston to Washington D.C. (Houston William P. Hobby Airport – Ronald Reagan Washington National Airport) is 1218 miles / 1961 kilometers / 1059 nautical miles. Estimated flight time is 2 hours 48 minutes.

Driving distance from Houston (HOU) to Washington D.C. (DCA) is 1414 miles / 2275 kilometers and travel time by car is about 24 hours 37 minutes.

## Map of flight path and driving directions from Houston to Washington D.C..

Shortest flight path between Houston William P. Hobby Airport (HOU) and Ronald Reagan Washington National Airport (DCA).

## 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)
• 1218.298 miles
• 1960.660 kilometers
• 1058.672 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
• 1217.166 miles
• 1958.838 kilometers
• 1057.688 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).

## Airport information

A Houston William P. Hobby Airport
City: Houston, TX
Country: United States
IATA Code: HOU
ICAO Code: KHOU
Coordinates: 29°38′43″N, 95°16′44″W

B Ronald Reagan Washington National Airport
City: Washington D.C.
Country: United States
IATA Code: DCA
ICAO Code: KDCA
Coordinates: 38°51′7″N, 77°2′15″W

## 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.

CDT

EDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 162 kg (358 pounds).

## Frequent Flyer Miles Calculator

Houston (HOU) → Washington D.C. (DCA).

Distance:
1218
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1218

Round trip?