Distance between Charleston, SC (CHS) and Helena, MT (HLN)
Flight distance from Charleston to Helena (Charleston International Airport – Helena Regional Airport) is 1927 miles / 3102 kilometers / 1675 nautical miles. Estimated flight time is 4 hours 8 minutes.
Driving distance from Charleston (CHS) to Helena (HLN) is 2410 miles / 3878 kilometers and travel time by car is about 40 hours 26 minutes.
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Charleston - Helena
Map of flight path and driving directions from Charleston to Helena.
Shortest flight path between Charleston International Airport (CHS) and Helena Regional Airport (HLN).
How far is Helena from Charleston?
There are several ways to calculate distances between Charleston and Helena. Here are two common methods:
Vincenty's formula (applied above)- 1927.202 miles
- 3101.532 kilometers
- 1674.693 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- 1924.270 miles
- 3096.813 kilometers
- 1672.145 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 | Charleston International Airport |
|---|---|
| City: | Charleston, SC |
| Country: | United States  |
| IATA Code: | CHS |
| ICAO Code: | KCHS |
| Coordinates: | 32°53′54″N, 80°2′25″W |
| B | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |
Time difference and current local times
The time difference between Charleston and Helena is 2 hours. Helena is 2 hours behind Charleston.
Time Difference
Charleston, SC
Helena, MT
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 211 kg (465 pounds).
Frequent Flyer Miles Calculator
Charleston (CHS) → Helena (HLN).
In total
Round trip?