Map of flight path and driving directions from Great Falls to Phoenix.
Shortest flight path between Great Falls International Airport (GTF) and Phoenix Sky Harbor International Airport (PHX).
How far is Phoenix from Great Falls?
There are several ways to calculate distances between Great Falls and Phoenix. Here are two common methods:Vincenty's formula (applied above)
- 969.867 miles
- 1560.850 kilometers
- 842.792 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
- 971.179 miles
- 1562.961 kilometers
- 843.931 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).
Time difference and current local times
The time difference between Great Falls and Phoenix is 1 hour. Phoenix is 1 hour behind Great Falls.
Great Falls, MT
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 149 kg (328 pounds).
Frequent Flyer Miles Calculator
Great Falls (GTF) → Phoenix (PHX).