How far is Helena, MT, from Fort Smith?

The distance between Fort Smith (Fort Smith Airport) and Helena (Helena Regional Airport) is 928 miles / 1493 kilometers / 806 nautical miles.

The driving distance from Fort Smith (YSM) to Helena (HLN) is 1095 miles / 1762 kilometers, and travel time by car is about 25 hours 48 minutes.

Distance from Fort Smith to Helena

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

Vincenty's formula (applied above)

• 927.582 miles
• 1492.799 kilometers
• 806.047 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

• 926.785 miles
• 1491.516 kilometers
• 805.354 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 Fort Smith to Helena?

The estimated flight time from Fort Smith Airport to Helena Regional Airport is 2 hours and 15 minutes.

What is the time difference between Fort Smith and Helena?

There is no time difference between Fort Smith and Helena.

Flight carbon footprint between Fort Smith Airport (YSM) and Helena Regional Airport (HLN)

On average, flying from Fort Smith to Helena generates about 146 kg of CO2 per passenger, and 146 kilograms equals 321 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Fort Smith to Helena

See the map of the shortest flight path between Fort Smith Airport (YSM) and Helena Regional Airport (HLN).

Airport information

Origin	Fort Smith Airport
City:	Fort Smith
Country:	Canada
IATA Code:	YSM
ICAO Code:	CYSM
Coordinates:	60°1′13″N, 111°57′43″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