The flight distance from Seattle-Tacoma International Airport (SEA) in Seattle, United States to Tri-Cities Airport (TRI) in Bristol/Johnson/Kingsport, United States is 3,472 kilometers (2,158 miles / 1,875 nautical miles). The estimated flight time for this route is approximately 5h, flying east at a heading of 96°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation. Despite being a domestic route, there is a 3-hour time difference between the two cities.

Time zone information: When it's 13:59 in Seattle, it's 16:59 in Bristol/Johnson/Kingsport. The 3-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 1,086 feet between the two airports. Tri-Cities Airport sits higher than Seattle-Tacoma International Airport.

The return flight from Bristol/Johnson/Kingsport (TRI) to Seattle (SEA) follows a heading of 303° (west northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Seattle-Tacoma International Airport (SEA) and Tri-Cities Airport (TRI) detail pages, or use our flight duration calculator to compare other routes.