How far is Helena, MT, from Smithers?

The distance between Smithers (Smithers Airport) and Helena (Helena Regional Airport) is 873 miles / 1405 kilometers / 758 nautical miles.

The driving distance from Smithers (YYD) to Helena (HLN) is 1117 miles / 1797 kilometers, and travel time by car is about 23 hours 8 minutes.

Distance from Smithers to Helena

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

Vincenty's formula (applied above)

• 872.854 miles
• 1404.722 kilometers
• 758.489 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

• 871.130 miles
• 1401.948 kilometers
• 756.991 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 Smithers to Helena?

The estimated flight time from Smithers Airport to Helena Regional Airport is 2 hours and 9 minutes.

What is the time difference between Smithers and Helena?

The time difference between Smithers and Helena is 1 hour. Helena is 1 hour ahead of Smithers.

Flight carbon footprint between Smithers Airport (YYD) and Helena Regional Airport (HLN)

On average, flying from Smithers to Helena generates about 141 kg of CO2 per passenger, and 141 kilograms equals 312 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Smithers to Helena

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

Airport information

Origin	Smithers Airport
City:	Smithers
Country:	Canada
IATA Code:	YYD
ICAO Code:	CYYD
Coordinates:	54°49′28″N, 127°10′58″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