Korean Air are running a B744 between the Island of Jeju, and Gimpo. Using "Google Earth" that's a distance of approx. 244nm and is about 50 mins airborne.
JAL used to have a fleet of B747D (Domestic), they didn't have winglets, and had high density seating, and were used for internal flights in Japan. Some of those would have been quite short sectors.
Last edited by Capt Chambo; 22nd September 2011 at 19:58.
Reason: Clarity