How far is Helena, MT, from Cat Lake?

The distance between Cat Lake (Cat Lake Airport) and Helena (Helena Regional Airport) is 976 miles / 1570 kilometers / 848 nautical miles.

The driving distance from Cat Lake (YAC) to Helena (HLN) is 1373 miles / 2210 kilometers, and travel time by car is about 30 hours 30 minutes.

Distance from Cat Lake to Helena

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

Vincenty's formula (applied above)

• 975.664 miles
• 1570.180 kilometers
• 847.829 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

• 973.077 miles
• 1566.015 kilometers
• 845.580 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 Cat Lake to Helena?

The estimated flight time from Cat Lake Airport to Helena Regional Airport is 2 hours and 20 minutes.

What is the time difference between Cat Lake and Helena?

The time difference between Cat Lake and Helena is 1 hour. Helena is 1 hour behind Cat Lake.

Flight carbon footprint between Cat Lake Airport (YAC) and Helena Regional Airport (HLN)

On average, flying from Cat Lake to Helena generates about 149 kg of CO2 per passenger, and 149 kilograms equals 329 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Cat Lake to Helena

See the map of the shortest flight path between Cat Lake Airport (YAC) and Helena Regional Airport (HLN).

Airport information

Origin	Cat Lake Airport
City:	Cat Lake
Country:	Canada
IATA Code:	YAC
ICAO Code:	CYAC
Coordinates:	51°43′37″N, 91°49′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