How far is Helena, MT, from Missoula, MT?

The distance between Missoula (Missoula Montana Airport) and Helena (Helena Regional Airport) is 102 miles / 165 kilometers / 89 nautical miles.

The driving distance from Missoula (MSO) to Helena (HLN) is 122 miles / 197 kilometers, and travel time by car is about 2 hours 14 minutes.

Distance from Missoula to Helena

There are several ways to calculate the distance from Missoula to Helena. Here are two standard methods:

Vincenty's formula (applied above)

• 102.319 miles
• 164.667 kilometers
• 88.913 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

• 102.037 miles
• 164.213 kilometers
• 88.668 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 Missoula to Helena?

The estimated flight time from Missoula Montana Airport to Helena Regional Airport is 41 minutes.

What is the time difference between Missoula and Helena?

There is no time difference between Missoula and Helena.

Flight carbon footprint between Missoula Montana Airport (MSO) and Helena Regional Airport (HLN)

On average, flying from Missoula to Helena generates about 40 kg of CO2 per passenger, and 40 kilograms equals 88 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Missoula to Helena

See the map of the shortest flight path between Missoula Montana Airport (MSO) and Helena Regional Airport (HLN).

Airport information

Origin	Missoula Montana Airport
City:	Missoula, MT
Country:	United States
IATA Code:	MSO
ICAO Code:	KMSO
Coordinates:	46°54′58″N, 114°5′27″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