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).
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..
Rapid City, SD
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 171 kg (377 pounds).
Frequent Flyer Miles Calculator
Washington D.C. (IAD) → Rapid City (RAP).