Burlington is the most populous city in the U.S. state of Vermont and the seat of Chittenden County. It is located 45 miles (72 km) south of the Canada–United States border and 95 miles (153 km) south of Montreal. As of the 2020 U.S. census, the population was 44,743. It is the least populous city in the 50 U.S. states to be the most populous city in its state.

Patrick Leahy Burlington International Airport is a joint-use civil-military airport serving Burlington, Vermont's most populous city, and its metropolitan area. Owned by the City of Burlington, the airport itself is located in neighboring South Burlington, just three nautical miles (6 km) east of Burlington's central business district.