Air Miles Calculator

Distance between Washington D.C. (DCA) and Blountville, TN (TRI)

Flight distance from Washington D.C. to Blountville (Ronald Reagan Washington National Airport – Blountville Tri-Cities Regional Airport) is 337 miles / 542 kilometers / 293 nautical miles. Estimated flight time is 1 hour 8 minutes.

Driving distance from Washington D.C. (DCA) to Blountville (TRI) is 394 miles / 634 kilometers and travel time by car is about 6 hours 56 minutes.

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

Shortest flight path between Ronald Reagan Washington National Airport (DCA) and Blountville Tri-Cities Regional Airport (TRI).

How far is Blountville from Washington D.C.?

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

Vincenty's formula (applied above)
  • 336.869 miles
  • 542.138 kilometers
  • 292.731 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
  • 336.408 miles
  • 541.397 kilometers
  • 292.331 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 Ronald Reagan Washington National Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: DCA
ICAO Code: KDCA
Coordinates: 38°51′7″N, 77°2′15″W

B Blountville Tri-Cities Regional Airport
City: Blountville, TN
Country: United States Flag of United States
IATA Code: TRI
ICAO Code: KTRI
Coordinates: 36°28′30″N, 82°24′26″W

Time difference and current local times

There is no time difference between Washington D.C. and Blountville.

Time Difference

Washington D.C.

 EST

Blountville, TN

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 75 kg (164 pounds).

Frequent Flyer Miles Calculator

Washington D.C. (DCA) → Blountville (TRI).

Distance:
337
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
337

Round trip?