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

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

The driving distance from Lewistown (LWT) to Portland (PDX) is 816 miles / 1314 kilometers, and travel time by car is about 15 hours 11 minutes.

Lewistown Municipal Airport – Portland International 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 Lewistown to Portland

There are several ways to calculate the distance from Lewistown to Portland. 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 Lewistown to Portland?

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

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

On average, flying from Lewistown to Portland 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 Lewistown to Portland

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

Airport information

Origin 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
Destination 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