What city is related to the airport code TRI?

The airport code TRI corresponds to Tri-Cities Airport, which serves the Tri-Cities region, specifically encompassing Johnson City, Kingsport, and Bristol in Tennessee and Virginia. This regional airport code is derived from the "Tri" in Tri-Cities, making the connection to Johnson City, Tennessee, the correct choice. The airport plays a crucial role in connecting this area to broader airline networks and transport routes in the southeastern United States.

The other options refer to airports in different cities. Tallahassee, Florida, is served by a different airport code (TLH), Traverse City, Michigan, uses TVC, and St. Louis, Missouri, is associated with STL. Each of these options indicates cities with distinct airport codes, distinguishing them clearly from the designation for the Tri-Cities Airport.