Air Miles Calculator

Distance between Great Falls, MT (GTF) and Phoenix, AZ (PHX)

Flight distance from Great Falls to Phoenix (Great Falls International Airport – Phoenix Sky Harbor International Airport) is 970 miles / 1561 kilometers / 843 nautical miles. Estimated flight time is 2 hours 20 minutes.

Driving distance from Great Falls (GTF) to Phoenix (PHX) is 1236 miles / 1989 kilometers and travel time by car is about 21 hours 26 minutes.

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).

Airport information


A 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

B Phoenix Sky Harbor International Airport
City: Phoenix, AZ
Country: United States Flag of United States
IATA Code: PHX
ICAO Code: KPHX
Coordinates: 33°26′3″N, 112°0′43″W

Time difference and current local times

There is no time difference between Great Falls and Phoenix.

Time Difference

Great Falls, MT

 MST

Phoenix, AZ

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 149 kg (328 pounds).

Frequent Flyer Miles Calculator

Great Falls (GTF) → Phoenix (PHX).

Distance:
970
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
970

Round trip?