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

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

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

Distance from Helena to Missoula

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

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

What is the time difference between Helena and Missoula?

There is no time difference between Helena and Missoula.

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

On average, flying from Helena to Missoula 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 Helena to Missoula

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

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