Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Blountville to Fresno as you normally would.
TRI stands for Blountville Tri Cities TN/VA Airport, while FAT stands for Fresno Airterminal Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.