Air Miles Calculator

Distance between Alamosa, CO (ALS) and Great Falls, MT (GTF)

Distance from Alamosa to Great Falls (Great Falls International Airport – San Luis Valley Regional Airport) is 748 miles / 1204 kilometers / 650 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 747.873 miles
  • 1203.586 kilometers
  • 649.884 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
  • 748.250 miles
  • 1204.191 kilometers
  • 650.211 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from San Luis Valley Regional Airport (ALS) to Great Falls International Airport (GTF) is 1 hour 54 minutes.

Time difference and current local times

There is no time difference between Alamosa and Great Falls.

Time Difference

Alamosa
Great Falls

Alamosa, CO

 MDT

Great Falls, MT

 MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 117 kg (258 pounds).

Airport information


A San Luis Valley Regional Airport
City: Alamosa, CO
Country: United States Flag of United States
IATA Code: ALS
ICAO Code: KALS
Coordinates: 37°26′5″N, 105°52′1″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

Map

Alamosa to Great Falls flight map.

Frequent Flyer Miles Calculator

Alamosa (ALS) → Great Falls (GTF).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
748
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
748

Round trip?