Air Miles Calculator

Distance between Spokane, WA (GEG) and Helena, MT (HLN)

Distance from Spokane to Helena (Spokane International Airport – Helena Regional Airport) is 271 miles / 436 kilometers / 235 nautical miles.

How far is Helena from Spokane?

There are several ways to calculate distances between Spokane and Helena. Here are two common 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 earth.

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).

Flight duration

Estimated flight time from Spokane International Airport (GEG) to Helena Regional Airport (HLN) is 1 hour 0 minutes.

Time difference and current local times

The time difference between Spokane and Helena is 1 hour. Helena is 1 hour ahead of Spokane.

Time Difference

Spokane
Helena

Spokane, WA

 PST

Helena, MT

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 62 kg (138 pounds).

Airport information


A Spokane International Airport
City: Spokane, WA
Country: United States Flag of United States
IATA Code: GEG
ICAO Code: KGEG
Coordinates: 47°37′11″N, 117°32′2″W

B Helena Regional Airport
City: Helena, MT
Country: United States Flag of United States
IATA Code: HLN
ICAO Code: KHLN
Coordinates: 46°36′24″N, 111°58′58″W

Map

Spokane to Helena flight map.

Frequent Flyer Miles Calculator

Spokane (GEG) → Helena (HLN).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
271
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
271

Round trip?