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How far is Lewistown, MT, from Seattle, WA?

The distance between Seattle (Seattle Boeing Field) and Lewistown (Lewistown Municipal Airport) is 604 miles / 971 kilometers / 524 nautical miles.

The driving distance from Seattle (BFI) to Lewistown (LWT) is 750 miles / 1207 kilometers, and travel time by car is about 13 hours 49 minutes.

Seattle Boeing Field – Lewistown Municipal Airport

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604
Miles
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971
Kilometers
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524
Nautical miles

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Distance from Seattle to Lewistown

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

Vincenty's formula (applied above)
  • 603.507 miles
  • 971.251 kilometers
  • 524.434 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
  • 601.748 miles
  • 968.420 kilometers
  • 522.905 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 Seattle to Lewistown?

The estimated flight time from Seattle Boeing Field to Lewistown Municipal Airport is 1 hour and 38 minutes.

Flight carbon footprint between Seattle Boeing Field (BFI) and Lewistown Municipal Airport (LWT)

On average, flying from Seattle to Lewistown generates about 113 kg of CO2 per passenger, and 113 kilograms equals 249 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Seattle to Lewistown

See the map of the shortest flight path between Seattle Boeing Field (BFI) and Lewistown Municipal Airport (LWT).

Airport information

Origin Seattle Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″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