How far is Calgary from Helena, MT?

The distance between Helena (Helena Regional Airport) and Calgary (Calgary International Airport) is 325 miles / 523 kilometers / 282 nautical miles.

The driving distance from Helena (HLN) to Calgary (YYC) is 408 miles / 657 kilometers, and travel time by car is about 7 hours 22 minutes.

Distance from Helena to Calgary

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

Vincenty's formula (applied above)

• 324.962 miles
• 522.976 kilometers
• 282.385 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

• 324.851 miles
• 522.797 kilometers
• 282.288 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 Calgary?

The estimated flight time from Helena Regional Airport to Calgary International Airport is 1 hour and 6 minutes.

What is the time difference between Helena and Calgary?

There is no time difference between Helena and Calgary.

Flight carbon footprint between Helena Regional Airport (HLN) and Calgary International Airport (YYC)

On average, flying from Helena to Calgary generates about 73 kg of CO2 per passenger, and 73 kilograms equals 161 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 Calgary

See the map of the shortest flight path between Helena Regional Airport (HLN) and Calgary International Airport (YYC).

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	Calgary International Airport
City:	Calgary
Country:	Canada
IATA Code:	YYC
ICAO Code:	CYYC
Coordinates:	51°6′50″N, 114°1′11″W