Air Miles Calculator

Distance between Chicago, IL (ORD) and Gillette, WY (GCC)

Flight distance from Chicago to Gillette (Chicago O'Hare International Airport – Gillette–Campbell County Airport) is 904 miles / 1455 kilometers / 786 nautical miles. Estimated flight time is 2 hours 12 minutes.

Driving distance from Chicago (ORD) to Gillette (GCC) is 1042 miles / 1677 kilometers and travel time by car is about 16 hours 57 minutes.

Map of flight path and driving directions from Chicago to Gillette.

Shortest flight path between Chicago O'Hare International Airport (ORD) and Gillette–Campbell County Airport (GCC).

How far is Gillette from Chicago?

There are several ways to calculate distances between Chicago and Gillette. Here are two common methods:

Vincenty's formula (applied above)
  • 904.143 miles
  • 1455.078 kilometers
  • 785.679 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
  • 901.824 miles
  • 1451.344 kilometers
  • 783.663 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 Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

B Gillette–Campbell County Airport
City: Gillette, WY
Country: United States Flag of United States
IATA Code: GCC
ICAO Code: KGCC
Coordinates: 44°20′56″N, 105°32′20″W

Time difference and current local times

The time difference between Chicago and Gillette is 1 hour. Gillette is 1 hour behind Chicago.

Time Difference

Chicago, IL

 CDT

Gillette, WY

 MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 144 kg (317 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → Gillette (GCC).

Distance:
904
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
904

Round trip?