How far is Helena, MT, from Ketchikan, AK?
The distance between Ketchikan (Ketchikan International Airport) and Helena (Helena Regional Airport) is 1046 miles / 1684 kilometers / 909 nautical miles.
The driving distance from Ketchikan (KTN) to Helena (HLN) is 1443 miles / 2323 kilometers, and travel time by car is about 33 hours 38 minutes.
Ketchikan International Airport – Helena Regional Airport
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Distance from Ketchikan to Helena
There are several ways to calculate the distance from Ketchikan to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 1046.101 miles
- 1683.536 kilometers
- 909.037 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- 1043.758 miles
- 1679.765 kilometers
- 907.001 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 Ketchikan to Helena?
The estimated flight time from Ketchikan International Airport to Helena Regional Airport is 2 hours and 28 minutes.
What is the time difference between Ketchikan and Helena?
The time difference between Ketchikan and Helena is 2 hours. Helena is 2 hours ahead of Ketchikan.
Flight carbon footprint between Ketchikan International Airport (KTN) and Helena Regional Airport (HLN)
On average, flying from Ketchikan to Helena generates about 154 kg of CO2 per passenger, and 154 kilograms equals 339 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Ketchikan to Helena
See the map of the shortest flight path between Ketchikan International Airport (KTN) and Helena Regional Airport (HLN).
Airport information
| Origin | Ketchikan International Airport |
|---|---|
| City: | Ketchikan, AK |
| Country: | United States  |
| IATA Code: | KTN |
| ICAO Code: | PAKT |
| Coordinates: | 55°21′19″N, 131°42′38″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 |