Air Miles Calculator logo

How far is Great Falls, MT, from Smithers?

The distance between Smithers (Smithers Airport) and Great Falls (Great Falls International Airport) is 851 miles / 1370 kilometers / 740 nautical miles.

The driving distance from Smithers (YYD) to Great Falls (GTF) is 1036 miles / 1668 kilometers, and travel time by car is about 22 hours 10 minutes.

Smithers Airport – Great Falls International Airport

Distance arrow
851
Miles
Distance arrow
1370
Kilometers
Distance arrow
740
Nautical miles

Search flights

Distance from Smithers to Great Falls

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

Vincenty's formula (applied above)
  • 851.313 miles
  • 1370.055 kilometers
  • 739.770 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
  • 849.438 miles
  • 1367.038 kilometers
  • 738.141 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 Great Falls?

The estimated flight time from Smithers Airport to Great Falls International Airport is 2 hours and 6 minutes.

Flight carbon footprint between Smithers Airport (YYD) and Great Falls International Airport (GTF)

On average, flying from Smithers to Great Falls generates about 139 kg of CO2 per passenger, and 139 kilograms equals 308 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 Great Falls

See the map of the shortest flight path between Smithers Airport (YYD) and Great Falls International Airport (GTF).

Airport information

Origin Smithers Airport
City: Smithers
Country: Canada Flag of Canada
IATA Code: YYD
ICAO Code: CYYD
Coordinates: 54°49′28″N, 127°10′58″W
Destination Great Falls International Airport
City: Great Falls, MT
Country: United States Flag of United States
IATA Code: GTF
ICAO Code: KGTF
Coordinates: 47°28′55″N, 111°22′15″W