How far is Helena, MT, from Cheyenne, WY?
The distance between Cheyenne (Cheyenne Regional Airport) and Helena (Helena Regional Airport) is 519 miles / 835 kilometers / 451 nautical miles.
The driving distance from Cheyenne (CYS) to Helena (HLN) is 692 miles / 1114 kilometers, and travel time by car is about 11 hours 54 minutes.
Cheyenne Regional Airport – Helena Regional Airport
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Distance from Cheyenne to Helena
There are several ways to calculate the distance from Cheyenne to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 519.062 miles
- 835.350 kilometers
- 451.053 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 518.602 miles
- 834.609 kilometers
- 450.653 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).
How long does it take to fly from Cheyenne to Helena?
The estimated flight time from Cheyenne Regional Airport to Helena Regional Airport is 1 hour and 28 minutes.
What is the time difference between Cheyenne and Helena?
Flight carbon footprint between Cheyenne Regional Airport (CYS) and Helena Regional Airport (HLN)
On average, flying from Cheyenne to Helena generates about 101 kg of CO2 per passenger, and 101 kilograms equals 224 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Cheyenne to Helena
See the map of the shortest flight path between Cheyenne Regional Airport (CYS) and Helena Regional Airport (HLN).
Airport information
| Origin | Cheyenne Regional Airport |
|---|---|
| City: | Cheyenne, WY |
| Country: | United States  |
| IATA Code: | CYS |
| ICAO Code: | KCYS |
| Coordinates: | 41°9′20″N, 104°48′43″W |
| Destination | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |