How far is Lewistown, MT, from Great Falls, MT?

The distance between Great Falls (Great Falls International Airport) and Lewistown (Lewistown Municipal Airport) is 94 miles / 152 kilometers / 82 nautical miles.

The driving distance from Great Falls (GTF) to Lewistown (LWT) is 114 miles / 183 kilometers, and travel time by car is about 2 hours 31 minutes.

Distance from Great Falls to Lewistown

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

Vincenty's formula (applied above)

• 94.389 miles
• 151.904 kilometers
• 82.022 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

• 94.142 miles
• 151.508 kilometers
• 81.808 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 Great Falls to Lewistown?

The estimated flight time from Great Falls International Airport to Lewistown Municipal Airport is 40 minutes.

What is the time difference between Great Falls and Lewistown?

There is no time difference between Great Falls and Lewistown.

Flight carbon footprint between Great Falls International Airport (GTF) and Lewistown Municipal Airport (LWT)

On average, flying from Great Falls to Lewistown generates about 39 kg of CO2 per passenger, and 39 kilograms equals 86 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Great Falls to Lewistown

See the map of the shortest flight path between Great Falls International Airport (GTF) and Lewistown Municipal Airport (LWT).

Airport information

Origin	Great Falls International Airport
City:	Great Falls, MT
Country:	United States
IATA Code:	GTF
ICAO Code:	KGTF
Coordinates:	47°28′55″N, 111°22′15″W

Destination	Lewistown Municipal Airport
City:	Lewistown, MT
Country:	United States
IATA Code:	LWT
ICAO Code:	KLWT
Coordinates:	47°2′57″N, 109°28′1″W