How far is Spokane, WA, from Helena, MT?
The distance between Helena (Helena Regional Airport) and Spokane (Spokane International Airport) is 271 miles / 436 kilometers / 235 nautical miles.
The driving distance from Helena (HLN) to Spokane (GEG) is 319 miles / 514 kilometers, and travel time by car is about 5 hours 45 minutes.
Helena Regional Airport – Spokane International Airport
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Distance from Helena to Spokane
There are several ways to calculate the distance from Helena to Spokane. 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 Helena to Spokane?
The estimated flight time from Helena Regional Airport to Spokane International Airport is 1 hour and 0 minutes.
What is the time difference between Helena and Spokane?
The time difference between Helena and Spokane is 1 hour. Spokane is 1 hour behind Helena.
Flight carbon footprint between Helena Regional Airport (HLN) and Spokane International Airport (GEG)
On average, flying from Helena to Spokane 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 Helena to Spokane
See the map of the shortest flight path between Helena Regional Airport (HLN) and Spokane International Airport (GEG).
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 | Spokane International Airport |
|---|---|
| City: | Spokane, WA |
| Country: | United States |
| IATA Code: | GEG |
| ICAO Code: | KGEG |
| Coordinates: | 47°37′11″N, 117°32′2″W |