Allegiant Air operates out of the main terminal, with flights departing from gates D1-D3. Allegiant AirĪllegiant Air is a low-cost air carrier that serves Tri-Cities Tennessee Airport, offering flights to several popular vacation destinations across the United States. United Airlines operates out of the main terminal, with flights departing from gates C1-C3. United Airlines also provides service to Tri-Cities Tennessee Airport, with daily flights to several nonstop destinations across the United States. American Airlines operates out of the main terminal, with flights departing from gates B1-B3. American AirlinesĪmerican Airlines is another major air carrier serving Tri-Cities Tennessee Airport, with daily flights to several nonstop destinations across the United States. Delta operates out of the main terminal, with flights departing from gates A1-A4. Delta Airlinesĭelta Airlines is one of the largest air carriers serving Tri-Cities Tennessee Airport, offering daily flights to several nonstop destinations across the United States. The airport is served by several major air carriers, with daily flights to numerous nonstop destinations. It serves the Tri-Cities area, which includes Bristol, Kingsport, and Johnson City. Tri-Cities Tennessee Airport (TRI) is a regional airport located in Blountville, Tennessee. Your Guide to Airlines Serving Tri-Cities Tennessee Airport

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