General Edward Lawrence Logan International Airport (IATA: BOS, ICAO: KBOS, FAA LID: BOS), also known as Boston Logan International Airport, is an international airport that is located mostly in East Boston and partially in Winthrop, Massachusetts. It opened in 1923, covers 2,384 acres (965 ha), has six runways and four passenger terminals, and employs an estimated 16,000 people. It is the largest airport in both the Commonwealth of Massachusetts and the New England region in terms of passenger volume and cargo handling as well as the busiest airport in the Northeastern United States outside the New York metropolitan area. The airport saw 42 million passengers in 2019, the most in its history. It is named after General Edward Lawrence Logan, a 20th-century soldier and politician native to Boston.

Logan has non-stop service to destinations throughout the United States and the world. BOS is the northeastern hub for Cape Air and is the secondary transatlantic hub for Delta Air Lines, serving several destinations in Europe. It is also an operating base for JetBlue. American Airlines and United Airlines also carry out significant operations from the airport, including daily transcontinental flights. All of the major U.S. air carriers offer flights from Boston to all or the majority of their primary and secondary hubs.