Air Miles Calculator

Distance between Redmond, OR (RDM) and Helena, MT (HLN)

Flight distance from Redmond to Helena (Roberts Field – Helena Regional Airport) is 474 miles / 763 kilometers / 412 nautical miles. Estimated flight time is 1 hour 23 minutes.

Driving distance from Redmond (RDM) to Helena (HLN) is 677 miles / 1089 kilometers and travel time by car is about 12 hours 10 minutes.

Map of flight path and driving directions from Redmond to Helena.

Shortest flight path between Roberts Field (RDM) and Helena Regional Airport (HLN).

How far is Helena from Redmond?

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

Vincenty's formula (applied above)
  • 474.085 miles
  • 762.967 kilometers
  • 411.969 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
  • 472.935 miles
  • 761.116 kilometers
  • 410.969 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 Helena Regional Airport
City: Helena, MT
Country: United States Flag of United States
IATA Code: HLN
ICAO Code: KHLN
Coordinates: 46°36′24″N, 111°58′58″W

Time difference and current local times

The time difference between Redmond and Helena is 1 hour. Helena is 1 hour ahead of Redmond.

Time Difference

Redmond, OR

 PST

Helena, MT

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 95 kg (209 pounds).

Frequent Flyer Miles Calculator

Redmond (RDM) → Helena (HLN).

Distance:
474
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
474

Round trip?