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How far is San Sebastian from Seattle, WA?

The distance between Seattle (Seattle Boeing Field) and San Sebastian (San Sebastián Airport) is 5203 miles / 8374 kilometers / 4521 nautical miles.

Seattle Boeing Field – San Sebastián Airport

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5203
Miles
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8374
Kilometers
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4521
Nautical miles

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Distance from Seattle to San Sebastian

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

Vincenty's formula (applied above)
  • 5203.097 miles
  • 8373.572 kilometers
  • 4521.367 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
  • 5188.821 miles
  • 8350.598 kilometers
  • 4508.962 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 San Sebastian?

The estimated flight time from Seattle Boeing Field to San Sebastián Airport is 10 hours and 21 minutes.

Flight carbon footprint between Seattle Boeing Field (BFI) and San Sebastián Airport (EAS)

On average, flying from Seattle to San Sebastian generates about 610 kg of CO2 per passenger, and 610 kilograms equals 1 346 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to San Sebastian

See the map of the shortest flight path between Seattle Boeing Field (BFI) and San Sebastián Airport (EAS).

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 San Sebastián Airport
City: San Sebastian
Country: Spain Flag of Spain
IATA Code: EAS
ICAO Code: LESO
Coordinates: 43°21′23″N, 1°47′26″W