Located in Groton, Connecticut, T.F. Green Airport is a busy hub for small aircraft. It is also the home of Groton State Airport, which is operated by the Connecticut Department of Transportation (CTDOT). The airport covers an area of 1,000 acres and has three runways: 6/24 is 7,100 feet long; 3/21 is 5,600 feet long; and 17/35 is 4,200 feet long. The runway condition designation for 6/24 is "good," while 3/21 is "fair" and 17/35 is "poor." There are 45 aircraft based at T.F. Green Airport, including 22 single-engine airplanes and 19 ultralights.

Bradley International Airport Groton is one of the busiest airports in New England. The airport has been in operation and is located just outside of Groton, Connecticut. Bradley serves as a hub for Delta Airlines and Air Canada. The airport has been designated as a United States Customs and Border Protection international port of entry.

New Bedford Regional Airport Groton is a public airport located two miles northeast of the central business district of Groton, in Plymouth County, Massachusetts, United States. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2009–2013, which categorized it as a general aviation facility.

The airport covers an area of at an elevation of 111 feet (34 m). It has one runway designated 17/35 with an asphalt surface measuring 3,000 by 75 feet (914 x 23 m). For the 12-month period ending September 30, 2014, the airport had 7,500 aircraft operations, an average of 20 per day: 77% general aviation and 23% military.