Air Miles Calculator

Distance between Washington D.C. (IAD) and Cheyenne, WY (CYS)

Flight distance from Washington D.C. to Cheyenne (Washington Dulles International Airport – Cheyenne Regional Airport) is 1452 miles / 2338 kilometers / 1262 nautical miles. Estimated flight time is 3 hours 15 minutes.

Driving distance from Washington D.C. (IAD) to Cheyenne (CYS) is 1636 miles / 2633 kilometers and travel time by car is about 27 hours 51 minutes.

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

Shortest flight path between Washington Dulles International Airport (IAD) and Cheyenne Regional Airport (CYS).

How far is Cheyenne from Washington D.C.?

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

Vincenty's formula (applied above)
  • 1452.470 miles
  • 2337.525 kilometers
  • 1262.162 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
  • 1448.899 miles
  • 2331.777 kilometers
  • 1259.059 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 Cheyenne Regional Airport
City: Cheyenne, WY
Country: United States Flag of United States
IATA Code: CYS
ICAO Code: KCYS
Coordinates: 41°9′20″N, 104°48′43″W

Time difference and current local times

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

Time Difference

Washington D.C.

 EDT

Cheyenne, WY

 MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 176 kg (389 pounds).

Frequent Flyer Miles Calculator

Washington D.C. (IAD) → Cheyenne (CYS).

Distance:
1452
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1452

Round trip?