How far is Helena, MT, from Alma?

The distance between Alma (Alma Airport) and Helena (Helena Regional Airport) is 1869 miles / 3008 kilometers / 1624 nautical miles.

The driving distance from Alma (YTF) to Helena (HLN) is 2502 miles / 4027 kilometers, and travel time by car is about 47 hours 41 minutes.

Distance from Alma to Helena

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

Vincenty's formula (applied above)

• 1869.139 miles
• 3008.088 kilometers
• 1624.237 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

• 1863.674 miles
• 2999.293 kilometers
• 1619.489 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 Alma to Helena?

The estimated flight time from Alma Airport to Helena Regional Airport is 4 hours and 2 minutes.

What is the time difference between Alma and Helena?

The time difference between Alma and Helena is 2 hours. Helena is 2 hours behind Alma.

Flight carbon footprint between Alma Airport (YTF) and Helena Regional Airport (HLN)

On average, flying from Alma to Helena generates about 206 kg of CO2 per passenger, and 206 kilograms equals 453 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Alma to Helena

See the map of the shortest flight path between Alma Airport (YTF) and Helena Regional Airport (HLN).

Airport information

Origin	Alma Airport
City:	Alma
Country:	Canada
IATA Code:	YTF
ICAO Code:	CYTF
Coordinates:	48°30′32″N, 71°38′30″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