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How far is Lewistown, MT, from Portland, OR?

The distance between Portland (Portland International Airport) and Lewistown (Lewistown Municipal Airport) is 636 miles / 1023 kilometers / 552 nautical miles.

The driving distance from Portland (PDX) to Lewistown (LWT) is 816 miles / 1313 kilometers, and travel time by car is about 15 hours 7 minutes.

Portland International Airport – Lewistown Municipal Airport

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636
Miles
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1023
Kilometers
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552
Nautical miles

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Distance from Portland to Lewistown

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

Vincenty's formula (applied above)
  • 635.661 miles
  • 1022.997 kilometers
  • 552.374 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
  • 633.889 miles
  • 1020.146 kilometers
  • 550.835 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 Portland to Lewistown?

The estimated flight time from Portland International Airport to Lewistown Municipal Airport is 1 hour and 42 minutes.

Flight carbon footprint between Portland International Airport (PDX) and Lewistown Municipal Airport (LWT)

On average, flying from Portland to Lewistown generates about 117 kg of CO2 per passenger, and 117 kilograms equals 258 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Portland to Lewistown

See the map of the shortest flight path between Portland International Airport (PDX) and Lewistown Municipal Airport (LWT).

Airport information

Origin Portland International Airport
City: Portland, OR
Country: United States Flag of United States
IATA Code: PDX
ICAO Code: KPDX
Coordinates: 45°35′19″N, 122°35′52″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