Air Miles Calculator

Distance between Washington D.C. (IAD) and Lexington, KY (LEX)

Flight distance from Washington D.C. to Lexington (Washington Dulles International Airport – Lexington Blue Grass Airport) is 393 miles / 632 kilometers / 341 nautical miles. Estimated flight time is 1 hour 14 minutes.

Driving distance from Washington D.C. (IAD) to Lexington (LEX) is 501 miles / 806 kilometers and travel time by car is about 9 hours 10 minutes.

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

Shortest flight path between Washington Dulles International Airport (IAD) and Lexington Blue Grass Airport (LEX).

How far is Lexington from Washington D.C.?

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

Vincenty's formula (applied above)
  • 392.534 miles
  • 631.722 kilometers
  • 341.103 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
  • 391.628 miles
  • 630.264 kilometers
  • 340.315 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 Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″W

B Lexington Blue Grass Airport
City: Lexington, KY
Country: United States Flag of United States
IATA Code: LEX
ICAO Code: KLEX
Coordinates: 38°2′11″N, 84°36′21″W

Time difference and current local times

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

Time Difference

Washington D.C.

 EDT

Lexington, KY

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 83 kg (183 pounds).

Frequent Flyer Miles Calculator

Washington D.C. (IAD) → Lexington (LEX).

Distance:
393
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
393

Round trip?