Air Miles Calculator

Distance between Spokane, WA (GEG) and Great Falls, MT (GTF)

Flight distance from Spokane to Great Falls (Spokane International Airport – Great Falls International Airport) is 288 miles / 464 kilometers / 251 nautical miles. Estimated flight time is 1 hour 2 minutes.

Driving distance from Spokane (GEG) to Great Falls (GTF) is 406 miles / 654 kilometers and travel time by car is about 7 hours 3 minutes.

Map of flight path and driving directions from Spokane to Great Falls.

Shortest flight path between Spokane International Airport (GEG) and Great Falls International Airport (GTF).

How far is Great Falls from Spokane?

There are several ways to calculate distances between Spokane and Great Falls. Here are two common methods:

Vincenty's formula (applied above)
  • 288.331 miles
  • 464.024 kilometers
  • 250.553 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
  • 287.484 miles
  • 462.661 kilometers
  • 249.817 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 Great Falls International Airport
City: Great Falls, MT
Country: United States Flag of United States
IATA Code: GTF
ICAO Code: KGTF
Coordinates: 47°28′55″N, 111°22′15″W

Time difference and current local times

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

Time Difference

Spokane, WA

 PST

Great Falls, MT

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 67 kg (149 pounds).

Frequent Flyer Miles Calculator

Spokane (GEG) → Great Falls (GTF).

Distance:
288
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
288

Round trip?