Thunder Bay Airport or Thunder Bay International Airport, (IATA: YQT, OACI: CYQT), is an airport in the Canadian city of Thunder Bay, Ontario. Avec 108,130 mouvements d'avions en 2012.

Originally named the Fort William Municipal Airport, la construction commença en 1938, partly as a means of relieving unemployment. Before the two cities of Fort William and Port Arthur merged, it was called the Canadian Lakehead Airport. The Thunder Bay Airport went under major renovations in 1994 with the construction of a new airport terminal building, including two jetways, a large food court, a gift shop and an arcade. The Thunder Bay Airport was handed over from the government in 1997 to the Thunder Bay International Airports Authority, a non-profit organization. The airport handled over 600,000 passagers en 2006 for the first time since 2001.

The Thunder Bay Airport is classified as an airport of entry by NAV CANADA and is staffed by the Canada Border Services Agency. CBSA officers at this airport currently can handle aircraft such as the Boeing 737-600 series which seats 119 passagers.

Thunder Bay Airport was the 5th busiest airport in Ontario and the 16th busiest airport in Canada. During the same year, plus de 761,000 passengers went through the Thunder Bay Airport.