How far is Helena, MT, from Redmond, OR?

The distance between Redmond (Roberts Field) and Helena (Helena Regional Airport) is 474 miles / 763 kilometers / 412 nautical miles.

The driving distance from Redmond (RDM) to Helena (HLN) is 682 miles / 1097 kilometers, and travel time by car is about 12 hours 47 minutes.

Distance from Redmond to Helena

There are several ways to calculate the distance from Redmond to Helena. Here are two standard 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 planet.

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).

How long does it take to fly from Redmond to Helena?

The estimated flight time from Roberts Field to Helena Regional Airport is 1 hour and 23 minutes.

What is the time difference between Redmond and Helena?

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

Flight carbon footprint between Roberts Field (RDM) and Helena Regional Airport (HLN)

On average, flying from Redmond to Helena generates about 95 kg of CO2 per passenger, and 95 kilograms equals 209 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Redmond to Helena

See the map of the shortest flight path between Roberts Field (RDM) and Helena Regional Airport (HLN).

Airport information

Origin	Roberts Field
City:	Redmond, OR
Country:	United States
IATA Code:	RDM
ICAO Code:	KRDM
Coordinates:	44°15′14″N, 121°9′0″W

Destination	Helena Regional Airport
City:	Helena, MT
Country:	United States
IATA Code:	HLN
ICAO Code:	KHLN
Coordinates:	46°36′24″N, 111°58′58″W