Air Miles Calculator

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

Flight distance from Spokane to Helena (Spokane International Airport – Helena Regional Airport) is 271 miles / 436 kilometers / 235 nautical miles. Estimated flight time is 1 hour 0 minutes.

Driving distance from Spokane (GEG) to Helena (HLN) is 319 miles / 513 kilometers and travel time by car is about 5 hours 18 minutes.

Map of flight path and driving directions from Spokane to Helena.

Shortest flight path between Spokane International Airport (GEG) and Helena Regional Airport (HLN).

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).

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

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, WA

 PST

Helena, MT

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 65 kg (143 pounds).

Frequent Flyer Miles Calculator

Spokane (GEG) → Helena (HLN).

Distance:
271
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
271

Round trip?