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How far is Tainan from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Tainan (Tainan Airport) is 6230 miles / 10026 kilometers / 5414 nautical miles.

Seattle–Tacoma International Airport – Tainan Airport

Distance arrow
6230
Miles
Distance arrow
10026
Kilometers
Distance arrow
5414
Nautical miles

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Distance from Seattle to Tainan

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

Vincenty's formula (applied above)
  • 6230.117 miles
  • 10026.401 kilometers
  • 5413.824 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
  • 6218.957 miles
  • 10008.442 kilometers
  • 5404.126 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 Tainan?

The estimated flight time from Seattle–Tacoma International Airport to Tainan Airport is 12 hours and 17 minutes.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Tainan Airport (TNN)

On average, flying from Seattle to Tainan generates about 748 kg of CO2 per passenger, and 748 kilograms equals 1 649 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Tainan

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Tainan Airport (TNN).

Airport information

Origin Seattle–Tacoma International Airport
City: Seattle, WA
Country: United States Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W
Destination Tainan Airport
City: Tainan
Country: Taiwan Flag of Taiwan
IATA Code: TNN
ICAO Code: RCNN
Coordinates: 22°57′1″N, 120°12′21″E