How far is Friday Harbor, WA, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Friday Harbor (Friday Harbor Airport) is 532 miles / 857 kilometers / 463 nautical miles.
The driving distance from Helena (HLN) to Friday Harbor (FRD) is 686 miles / 1104 kilometers, and travel time by car is about 13 hours 32 minutes.
Helena Regional Airport – Friday Harbor Airport
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Distance from Helena to Friday Harbor
There are several ways to calculate the distance from Helena to Friday Harbor. Here are two standard methods:
Vincenty's formula (applied above)- 532.423 miles
- 856.851 kilometers
- 462.663 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- 530.958 miles
- 854.494 kilometers
- 461.390 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 Friday Harbor?
The estimated flight time from Helena Regional Airport to Friday Harbor Airport is 1 hour and 30 minutes.
What is the time difference between Helena and Friday Harbor?
Flight carbon footprint between Helena Regional Airport (HLN) and Friday Harbor Airport (FRD)
On average, flying from Helena to Friday Harbor generates about 103 kg of CO2 per passenger, and 103 kilograms equals 228 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 Friday Harbor
See the map of the shortest flight path between Helena Regional Airport (HLN) and Friday Harbor Airport (FRD).
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 | Friday Harbor Airport |
|---|---|
| City: | Friday Harbor, WA |
| Country: | United States |
| IATA Code: | FRD |
| ICAO Code: | KFHR |
| Coordinates: | 48°31′19″N, 123°1′26″W |