Korean Air W18 Japan service adjustments

Korean Air from late-December 2018 gradually increases service to Japan, as following routes receives frequency increase.

Busan – Sapporo New Chitose 01JAN19 – 26FEB19 Increase from 5 to 7 weekly, A220-300 operating
Seoul Incheon – Aomori eff 22DEC18 Increase from 3 to 5 weekly, 737-800/-900ER operating
Seoul Incheon – Kagoshima eff 01JAN19 Increase from 3 to 5 weekly, 737-800/777-200ER operating
Seoul Incheon – Niigata eff 01FEB19 Increase from 3 to 5 weekly, 737-900/-900ER operating
Seoul Incheon – Oita eff 02JAN19 Service resumption, 3 weekly 737-900/-900ER