# 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
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
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.

PDT

EDT

## 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?