Airlines Will Soon Pay Less To Fly The Tri. The Tri-Cities Airport Authority Has Approved A 5-Percent Decrease In Rates And Charges, Including Landing Fees And Rent For Ticket Counters And Terminal Space. Executive Director Gene Cossey Said The Goal Is To Help Lower The Impact Of Covid-19. So Far, There Have Been No Flight Cancellations This Month. Tri-Cities Airport Is Served By Delta, American, And Allegiant Airlines.