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How far is Blountville, TN, from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Blountville (Blountville Tri-Cities Regional Airport) is 2162 miles / 3480 kilometers / 1879 nautical miles.

The driving distance from Seattle (SEA) to Blountville (TRI) is 2680 miles / 4313 kilometers, and travel time by car is about 47 hours 20 minutes.

Seattle–Tacoma International Airport – Blountville Tri-Cities Regional Airport

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2162
Miles
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3480
Kilometers
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1879
Nautical miles

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Distance from Seattle to Blountville

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

Vincenty's formula (applied above)
  • 2162.427 miles
  • 3480.090 kilometers
  • 1879.098 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
  • 2157.780 miles
  • 3472.610 kilometers
  • 1875.060 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 Blountville?

The estimated flight time from Seattle–Tacoma International Airport to Blountville Tri-Cities Regional Airport is 4 hours and 35 minutes.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Blountville Tri-Cities Regional Airport (TRI)

On average, flying from Seattle to Blountville generates about 236 kg of CO2 per passenger, and 236 kilograms equals 520 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 Blountville

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Blountville Tri-Cities Regional Airport (TRI).

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 Blountville Tri-Cities Regional Airport
City: Blountville, TN
Country: United States Flag of United States
IATA Code: TRI
ICAO Code: KTRI
Coordinates: 36°28′30″N, 82°24′26″W