TRI (Tri-Cities Airport, located in Bloutville, TN)

https://flytri.com/

Roughly 15-30 minutes from Johnson City, TN

*Our recommendation*

AVL (Asheville Airport, located in Asheville, NC)

https://flyavl.com/

Roughly 50-75 minutes from Johnson City, TN

TYS (Knoxville Airport, located in Alcoa, TN)

https://www.flyknoxville.com/

Roughly 50-75 minutes from Johnson City, TN