Cheap TRI to Duluth flights

Book your TRI to DLH flights with Expedia and find last-minute Tri-Cities to Duluth airfare. Expedia offers discount airfare on multiple airline carriers that fly direct and indirect routes between TRI and DLH, with new flight deals and promotions almost daily. When you book your next trip from Tri Cities Regional to Duluth Intl. with Expedia, you can rest assured you’re getting great ticket prices and excellent service from one of the world’s most trusted travel providers.

TRI to DLH Route Map

Tri-Cities to Duluth Flights, Stats and Airplanes

Route information for flights from Tri Cities Regional to Duluth Intl..

Destination:
Distance:
874.96 miles

TRI - Tri Cities Regional Airlines

Browse the most popular airlines servicing the Tri-Cities (TRI) airport. Visit their flights pages to learn more about the most popular routes these carriers fly.

DLH - Duluth Intl. Airlines

Browse the most popular airlines servicing the Duluth (DLH) airport. Visit their flights pages to learn more about the most popular routes these carriers fly.