Allegiant flights can only be booked through the Allegiant website. Please click here to book now.
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- Non-stop service to Orlando Sanford Airport (SFB).
- Non-stop service to Tampa through Clearwater-St. Petersburg International Airport (PIE).
- Non-stop daily service to Charlotte (CLT) through Charlotte Douglas International Airport
- Non-stop daily service to Atlanta (ATL) through Hartsfield Jackson International Airport
Tri-Cities Airport offers non-stop service to four hubs. With one connection you can get most anywhere in the United States and many destinations abroad. Each airline’s contact information is listed above or click on the airline name to visit each website. You can also follow TRI on Facebook, Twitter, or Instagram for the latest Airport news.