How far is Helena, MT, from Chattanooga, TN?
The distance between Chattanooga (Chattanooga Metropolitan Airport) and Helena (Helena Regional Airport) is 1603 miles / 2580 kilometers / 1393 nautical miles.
The driving distance from Chattanooga (CHA) to Helena (HLN) is 1952 miles / 3141 kilometers, and travel time by car is about 35 hours 11 minutes.
Chattanooga Metropolitan Airport – Helena Regional Airport
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Distance from Chattanooga to Helena
There are several ways to calculate the distance from Chattanooga to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1603.402 miles
- 2580.426 kilometers
- 1393.319 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- 1600.859 miles
- 2576.333 kilometers
- 1391.108 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 Chattanooga to Helena?
The estimated flight time from Chattanooga Metropolitan Airport to Helena Regional Airport is 3 hours and 32 minutes.
What is the time difference between Chattanooga and Helena?
The time difference between Chattanooga and Helena is 2 hours. Helena is 2 hours behind Chattanooga.
Flight carbon footprint between Chattanooga Metropolitan Airport (CHA) and Helena Regional Airport (HLN)
On average, flying from Chattanooga to Helena generates about 186 kg of CO2 per passenger, and 186 kilograms equals 410 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Chattanooga to Helena
See the map of the shortest flight path between Chattanooga Metropolitan Airport (CHA) and Helena Regional Airport (HLN).
Airport information
| Origin | Chattanooga Metropolitan Airport |
|---|---|
| City: | Chattanooga, TN |
| Country: | United States  |
| IATA Code: | CHA |
| ICAO Code: | KCHA |
| Coordinates: | 35°2′7″N, 85°12′13″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 |