# Distance between Washington D.C. (IAD) and Texarkana, AR (TXK)

Flight distance from Washington D.C. to Texarkana (Washington Dulles International Airport – Texarkana Regional Airport) is 997 miles / 1604 kilometers / 866 nautical miles. Estimated flight time is 2 hours 23 minutes.

Driving distance from Washington D.C. (IAD) to Texarkana (TXK) is 1135 miles / 1827 kilometers and travel time by car is about 19 hours 37 minutes.

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

Shortest flight path between Washington Dulles International Airport (IAD) and Texarkana Regional Airport (TXK).

## How far is Texarkana from Washington D.C.?

There are several ways to calculate distances between Washington D.C. and Texarkana. Here are two common methods:

Vincenty's formula (applied above)
• 996.702 miles
• 1604.037 kilometers
• 866.111 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
• 995.057 miles
• 1601.389 kilometers
• 864.681 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 Washington Dulles International Airport
City: Washington D.C.
Country: United States
Coordinates: 38°56′40″N, 77°27′20″W

B Texarkana Regional Airport
City: Texarkana, AR
Country: United States
IATA Code: TXK
ICAO Code: KTXK
Coordinates: 33°27′13″N, 93°59′27″W

## Time difference and current local times

The time difference between Washington D.C. and Texarkana is 1 hour. Texarkana is 1 hour behind Washington D.C..

EDT

CDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 151 kg (332 pounds).

## Frequent Flyer Miles Calculator

Washington D.C. (IAD) → Texarkana (TXK).

Distance:
997
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
997

Round trip?