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How far is Lewistown, MT, from Chicago, IL?

The distance between Chicago (Chicago O'Hare International Airport) and Lewistown (Lewistown Municipal Airport) is 1117 miles / 1798 kilometers / 971 nautical miles.

The driving distance from Chicago (ORD) to Lewistown (LWT) is 1263 miles / 2032 kilometers, and travel time by car is about 22 hours 44 minutes.

Chicago O'Hare International Airport – Lewistown Municipal Airport

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1117
Miles
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1798
Kilometers
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971
Nautical miles

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Distance from Chicago to Lewistown

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

Vincenty's formula (applied above)
  • 1117.107 miles
  • 1797.810 kilometers
  • 970.740 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
  • 1114.399 miles
  • 1793.452 kilometers
  • 968.386 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 Chicago to Lewistown?

The estimated flight time from Chicago O'Hare International Airport to Lewistown Municipal Airport is 2 hours and 36 minutes.

Flight carbon footprint between Chicago O'Hare International Airport (ORD) and Lewistown Municipal Airport (LWT)

On average, flying from Chicago to Lewistown generates about 158 kg of CO2 per passenger, and 158 kilograms equals 347 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Chicago to Lewistown

See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and Lewistown Municipal Airport (LWT).

Airport information

Origin Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W
Destination Lewistown Municipal Airport
City: Lewistown, MT
Country: United States Flag of United States
IATA Code: LWT
ICAO Code: KLWT
Coordinates: 47°2′57″N, 109°28′1″W