Air Miles Calculator

Distance between Redmond, OR (RDM) and Great Falls, MT (GTF)

Flight distance from Redmond to Great Falls (Roberts Field – Great Falls International Airport) is 521 miles / 839 kilometers / 453 nautical miles. Estimated flight time is 1 hour 29 minutes.

Driving distance from Redmond (RDM) to Great Falls (GTF) is 764 miles / 1230 kilometers and travel time by car is about 13 hours 54 minutes.

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

Shortest flight path between Roberts Field (RDM) and Great Falls International Airport (GTF).

How far is Great Falls from Redmond?

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

Vincenty's formula (applied above)
  • 521.328 miles
  • 838.996 kilometers
  • 453.022 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
  • 520.158 miles
  • 837.113 kilometers
  • 452.005 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 Roberts Field
City: Redmond, OR
Country: United States Flag of United States
IATA Code: RDM
ICAO Code: KRDM
Coordinates: 44°15′14″N, 121°9′0″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 Redmond and Great Falls is 1 hour. Great Falls is 1 hour ahead of Redmond.

Time Difference

Redmond, OR

 PST

Great Falls, MT

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 102 kg (224 pounds).

Frequent Flyer Miles Calculator

Redmond (RDM) → Great Falls (GTF).

Distance:
521
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
521

Round trip?