How far is Eastsound, WA, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Eastsound (Orcas Island Airport) is 530 miles / 853 kilometers / 460 nautical miles.
The driving distance from Helena (HLN) to Eastsound (ESD) is 691 miles / 1112 kilometers, and travel time by car is about 13 hours 32 minutes.
Helena Regional Airport – Orcas Island Airport
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Distance from Helena to Eastsound
There are several ways to calculate the distance from Helena to Eastsound. Here are two standard methods:
Vincenty's formula (applied above)- 529.756 miles
- 852.560 kilometers
- 460.345 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- 528.317 miles
- 850.244 kilometers
- 459.095 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 Eastsound?
The estimated flight time from Helena Regional Airport to Orcas Island Airport is 1 hour and 30 minutes.
What is the time difference between Helena and Eastsound?
The time difference between Helena and Eastsound is 1 hour. Eastsound is 1 hour behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Orcas Island Airport (ESD)
On average, flying from Helena to Eastsound generates about 103 kg of CO2 per passenger, and 103 kilograms equals 227 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 Eastsound
See the map of the shortest flight path between Helena Regional Airport (HLN) and Orcas Island Airport (ESD).
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 | Orcas Island Airport |
|---|---|
| City: | Eastsound, WA |
| Country: | United States |
| IATA Code: | ESD |
| ICAO Code: | KORS |
| Coordinates: | 48°42′29″N, 122°54′36″W |