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How far is Seattle, WA, from Unalaska, AK?

The distance between Unalaska (Unalaska Airport) and Seattle (Seattle Boeing Field) is 1957 miles / 3149 kilometers / 1700 nautical miles.

Unalaska Airport – Seattle Boeing Field

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1957
Miles
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3149
Kilometers
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1700
Nautical miles

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Distance from Unalaska to Seattle

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

Vincenty's formula (applied above)
  • 1956.790 miles
  • 3149.149 kilometers
  • 1700.404 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
  • 1950.958 miles
  • 3139.763 kilometers
  • 1695.337 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 Unalaska to Seattle?

The estimated flight time from Unalaska Airport to Seattle Boeing Field is 4 hours and 12 minutes.

Flight carbon footprint between Unalaska Airport (DUT) and Seattle Boeing Field (BFI)

On average, flying from Unalaska to Seattle generates about 214 kg of CO2 per passenger, and 214 kilograms equals 471 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Unalaska to Seattle

See the map of the shortest flight path between Unalaska Airport (DUT) and Seattle Boeing Field (BFI).

Airport information

Origin Unalaska Airport
City: Unalaska, AK
Country: United States Flag of United States
IATA Code: DUT
ICAO Code: PADU
Coordinates: 53°54′0″N, 166°32′38″W
Destination 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