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).
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..
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 151 kg (332 pounds).
Frequent Flyer Miles Calculator
Washington D.C. (IAD) → Texarkana (TXK).