How far is Port Angeles, WA, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Port Angeles (William R. Fairchild International Airport) is 550 miles / 885 kilometers / 478 nautical miles.
The driving distance from Helena (HLN) to Port Angeles (CLM) is 679 miles / 1093 kilometers, and travel time by car is about 13 hours 17 minutes.
Helena Regional Airport – William R. Fairchild International Airport
Search flights
Distance from Helena to Port Angeles
There are several ways to calculate the distance from Helena to Port Angeles. Here are two standard methods:
Vincenty's formula (applied above)- 550.042 miles
- 885.207 kilometers
- 477.974 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- 548.493 miles
- 882.714 kilometers
- 476.627 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 Helena to Port Angeles?
The estimated flight time from Helena Regional Airport to William R. Fairchild International Airport is 1 hour and 32 minutes.
What is the time difference between Helena and Port Angeles?
The time difference between Helena and Port Angeles is 1 hour. Port Angeles is 1 hour behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and William R. Fairchild International Airport (CLM)
On average, flying from Helena to Port Angeles generates about 106 kg of CO2 per passenger, and 106 kilograms equals 234 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Helena to Port Angeles
See the map of the shortest flight path between Helena Regional Airport (HLN) and William R. Fairchild International Airport (CLM).
Airport information
| Origin | Helena Regional Airport |
|---|---|
| City: | Helena, MT |
| Country: | United States  |
| IATA Code: | HLN |
| ICAO Code: | KHLN |
| Coordinates: | 46°36′24″N, 111°58′58″W |
| Destination | William R. Fairchild International Airport |
|---|---|
| City: | Port Angeles, WA |
| Country: | United States |
| IATA Code: | CLM |
| ICAO Code: | KCLM |
| Coordinates: | 48°7′12″N, 123°30′0″W |