Calculations with different methods
- 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).
Estimated flight time from Washington Dulles International Airport (IAD) to Texarkana Regional Airport (TXK) is 2 hours 23 minutes.
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 140 kg (308 pounds).
Washington D.C. to Texarkana flight map.
Frequent Flyer Miles Calculator
Washington D.C. (IAD) → Texarkana (TXK).