How far is Alma from Helena, MT?

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

The driving distance from Helena (HLN) to Alma (YTF) is 2508 miles / 4036 kilometers, and travel time by car is about 47 hours 45 minutes.

Distance from Helena to Alma

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

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

What is the time difference between Helena and Alma?

The time difference between Helena and Alma is 2 hours. Alma is 2 hours ahead of Helena.

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

On average, flying from Helena to Alma 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 Helena to Alma

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

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