In the preliminary schedule filing for winter 2016/17 season, effective 30OCT16, Korean Air has tentatively scheduled last Boeing 747-400 scheduled operation on 29OCT16.
From 30OCT16, 777-300ER aircraft is tentatively listed to replace following 747-400 service:
Seoul Incheon – Bangkok KE657/658
Seoul Incheon – Honolulu KE053/054
Seoul Incheon – Sapporo Chitose KE765/766 (777-300)
Additional changes to planned summer 2016 and winter 2016/17 schedules will occur in the next few weeks, therefore last 747-400 scheduled operation is subject to change.