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

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

The driving distance from Helena (HLN) to Redmond (RDM) is 682 miles / 1098 kilometers, and travel time by car is about 12 hours 49 minutes.

Distance from Helena to Redmond

There are several ways to calculate the distance from Helena to Redmond. 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 Helena to Redmond?

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

What is the time difference between Helena and Redmond?

The time difference between Helena and Redmond is 1 hour. Redmond is 1 hour behind Helena.

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

On average, flying from Helena to Redmond 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 Helena to Redmond

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

Airport information

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

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