Tri-Cities Airport, is in Blountville, Tennessee, United States. It serves the Tri-Cities area of Northeast Tennessee and Southwest Virginia. The airport is governed by the Tri-Cities Airport Authority (TCAA) whose members are appointed by the cities of Johnson City, Kingsport, Bristol (TN), Bristol (VA) and both Washington and Sullivan counties in Tennessee.

The Tri-Cities is the region comprising the cities of Kingsport, Johnson City, and Bristol and the surrounding smaller towns and communities in Northeast Tennessee and Southwest Virginia. All three cities are located in Northeast Tennessee, while Bristol has a twin city of the same name in Virginia.