# Distance between Washington D.C. (IAD) and Pierre, SD (PIR)

Flight distance from Washington D.C. to Pierre (Washington Dulles International Airport – Pierre Regional Airport) is 1235 miles / 1987 kilometers / 1073 nautical miles. Estimated flight time is 2 hours 50 minutes.

Driving distance from Washington D.C. (IAD) to Pierre (PIR) is 1486 miles / 2392 kilometers and travel time by car is about 25 hours 27 minutes.

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

Shortest flight path between Washington Dulles International Airport (IAD) and Pierre Regional Airport (PIR).

## How far is Pierre from Washington D.C.?

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

Vincenty's formula (applied above)
• 1234.919 miles
• 1987.410 kilometers
• 1073.115 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
• 1232.144 miles
• 1982.943 kilometers
• 1070.704 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
Coordinates: 38°56′40″N, 77°27′20″W

B Pierre Regional Airport
City: Pierre, SD
Country: United States
IATA Code: PIR
ICAO Code: KPIR
Coordinates: 44°22′57″N, 100°17′9″W

## Time difference and current local times

The time difference between Washington D.C. and Pierre is 1 hour. Pierre is 1 hour behind Washington D.C..

EST

CST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 163 kg (359 pounds).

## Frequent Flyer Miles Calculator

Washington D.C. (IAD) → Pierre (PIR).

Distance:
1235
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1235

Round trip?