Which airport is located on an island, Wilmington International Airport or Ketchikan International Airport?
Wilmington International Airport: Wilmington International Airport (IATA: ILM, ICAO: KILM, FAA LID: ILM) is a public airport located just north of Wilmington, North Carolina, in unincorporated Wrightsboro, Cape Fear Township, New Hanover County. Ketchikan International Airport: Ketchikan International Airport (IATA: KTN, ICAO: PAKT, FAA LID: KTN) is a state-owned, public-use airport located one nautical mile (2 km) west of the central business district of Ketchikan, a city in Ketchikan Gateway Borough in the U.S. state of Alaska which has no direct road access to the outside world nor to the airport. Ketchikan International Airport:  The airport is located on Gravina Island, just west of Ketchikan on the other side of the Tongass Narrows.
Ketchikan International Airport