How far is Helena, MT, from Spokane, WA?
The distance between Spokane (Spokane International Airport) and Helena (Helena Regional Airport) is 271 miles / 436 kilometers / 235 nautical miles.
The driving distance from Spokane (GEG) to Helena (HLN) is 319 miles / 513 kilometers, and travel time by car is about 5 hours 42 minutes.
Spokane International Airport – Helena Regional Airport
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Distance from Spokane to Helena
There are several ways to calculate the distance from Spokane to Helena. Here are two standard methods:
Vincenty's formula (applied above)- 270.905 miles
- 435.979 kilometers
- 235.410 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- 270.172 miles
- 434.799 kilometers
- 234.773 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 Spokane to Helena?
The estimated flight time from Spokane International Airport to Helena Regional Airport is 1 hour and 0 minutes.
What is the time difference between Spokane and Helena?
The time difference between Spokane and Helena is 1 hour. Helena is 1 hour ahead of Spokane.
Flight carbon footprint between Spokane International Airport (GEG) and Helena Regional Airport (HLN)
On average, flying from Spokane to Helena generates about 65 kg of CO2 per passenger, and 65 kilograms equals 143 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Spokane to Helena
See the map of the shortest flight path between Spokane International Airport (GEG) and Helena Regional Airport (HLN).
Airport information
| Origin | Spokane International Airport |
|---|---|
| City: | Spokane, WA |
| Country: | United States  |
| IATA Code: | GEG |
| ICAO Code: | KGEG |
| Coordinates: | 47°37′11″N, 117°32′2″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 |