How far is Helena, MT, from Eastsound, WA?
The distance between Eastsound (Orcas Island Airport) and Helena (Helena Regional Airport) is 530 miles / 853 kilometers / 460 nautical miles.
The driving distance from Eastsound (ESD) to Helena (HLN) is 690 miles / 1111 kilometers, and travel time by car is about 13 hours 29 minutes.
Orcas Island Airport – Helena Regional Airport
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Distance from Eastsound to Helena
There are several ways to calculate the distance from Eastsound to Helena. 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 Eastsound to Helena?
The estimated flight time from Orcas Island Airport to Helena Regional Airport is 1 hour and 30 minutes.
What is the time difference between Eastsound and Helena?
The time difference between Eastsound and Helena is 1 hour. Helena is 1 hour ahead of Eastsound.
Flight carbon footprint between Orcas Island Airport (ESD) and Helena Regional Airport (HLN)
On average, flying from Eastsound to Helena 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 Eastsound to Helena
See the map of the shortest flight path between Orcas Island Airport (ESD) and Helena Regional Airport (HLN).
Airport information
| Origin | Orcas Island Airport |
|---|---|
| City: | Eastsound, WA |
| Country: | United States  |
| IATA Code: | ESD |
| ICAO Code: | KORS |
| Coordinates: | 48°42′29″N, 122°54′36″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 |