Air Miles Calculator

Distance between Seattle, WA (BFI) and Blountville, TN (TRI)

Flight distance from Seattle to Blountville (Seattle Boeing Field – Blountville Tri-Cities Regional Airport) is 2163 miles / 3480 kilometers / 1879 nautical miles. Estimated flight time is 4 hours 35 minutes.

Driving distance from Seattle (BFI) to Blountville (TRI) is 2663 miles / 4286 kilometers and travel time by car is about 44 hours 27 minutes.

Map of flight path and driving directions from Seattle to Blountville.

Shortest flight path between Seattle Boeing Field (BFI) and Blountville Tri-Cities Regional Airport (TRI).

How far is Blountville from Seattle?

There are several ways to calculate distances between Seattle and Blountville. Here are two common methods:

Vincenty's formula (applied above)
  • 2162.667 miles
  • 3480.476 kilometers
  • 1879.307 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 2158.028 miles
  • 3473.009 kilometers
  • 1875.275 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).

Airport information


A 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

B 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

Time difference and current local times

The time difference between Seattle and Blountville is 3 hours. Blountville is 3 hours ahead of Seattle.

Time Difference

Seattle, WA

 PST

Blountville, TN

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 236 kg (520 pounds).

Frequent Flyer Miles Calculator

Seattle (BFI) → Blountville (TRI).

Distance:
2163
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
2163

Round trip?