Air Miles Calculator

Distance between Washington D.C. (IAD) and Rapid City, SD (RAP)

Flight distance from Washington D.C. to Rapid City (Washington Dulles International Airport – Rapid City Regional Airport) is 1368 miles / 2202 kilometers / 1189 nautical miles. Estimated flight time is 3 hours 5 minutes.

Driving distance from Washington D.C. (IAD) to Rapid City (RAP) is 1605 miles / 2583 kilometers and travel time by car is about 27 hours 11 minutes.

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

Shortest flight path between Washington Dulles International Airport (IAD) and Rapid City Regional Airport (RAP).

How far is Rapid City from Washington D.C.?

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

Vincenty's formula (applied above)
  • 1368.036 miles
  • 2201.640 kilometers
  • 1188.790 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
  • 1364.842 miles
  • 2196.500 kilometers
  • 1186.015 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 Rapid City Regional Airport
City: Rapid City, SD
Country: United States Flag of United States
IATA Code: RAP
ICAO Code: KRAP
Coordinates: 44°2′43″N, 103°3′25″W

Time difference and current local times

The time difference between Washington D.C. and Rapid City is 2 hours. Rapid City is 2 hours behind Washington D.C..

Time Difference

Washington D.C.

 EST

Rapid City, SD

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 171 kg (377 pounds).

Frequent Flyer Miles Calculator

Washington D.C. (IAD) → Rapid City (RAP).

Distance:
1368
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1368

Round trip?