The airman was found at about 8:50 a.m. local time, according to a release from Kunsan. Emergency responders arrived, and about 20 minutes later, pronounced the airman dead.
The airman has not yet been identified, pending notification of the family.
The death is under investigation, the base said, and further details will be announced.
Kunsan, the home to the 8th Fighter Wing, has about 2,800 airmen, 110 Army soldiers, 20 American civilians and about 420 local employees working there.
The 8th has about 45 F-16s assigned to it. Kunsan is also home to the Army’s 2nd Battalion, 1st Air Defense Artillery, which operates Patriot missile batteries.
Stephen Losey is the air warfare reporter for Defense News. He previously covered leadership and personnel issues at Air Force Times, and the Pentagon, special operations and air warfare at Military.com. He has traveled to the Middle East to cover U.S. Air Force operations.