Check for the cheapest flights to and from Tri Cities Regional – TRI on Expedia by searching in our cheap airfare section. We offer year-round discount flights from TRI to a broad range of destinations on a wide selection of airlines. Let Expedia help you find great deals on Tri-Cities airfare and book your Tri-Cities flights today to and from TRI airport.

Tri Cities Regional, also known by IATA (International Air Transport Association) code TRI and ICAO (International Civil Aviation Organization) code KTRI, offers flights from multiple airline carriers to many popular global destinations. Above you’ll find some useful information about Tri-Cities’s airport that can help you in planning your next trip. Expedia offers flights from TRI airport on multiple airline carriers, and makes it easy and affordable for you to book low cost Tri-Cities flights.