Aero K will gradually increase the number of flights on the Kitakyushu–Cheongju route to 10 round trips per week.
From the previous 3 round trips per week, flights will be added on Mondays, Tuesdays, Wednesdays, Fridays, and Saturdays from April 27, on Sundays from May 4, and on Thursdays from June 1, expanding the service to 10 round trips per week. The aircraft used will be the Airbus A320.
Aero K launched this route on September 30, 2025, and is the only airline operating it. Since April 27, the number of flights had already been increased from 3 to 7 round trips per week.
■ Timetable RF373 Kitakyushu (11:55) → Cheongju (13:10) / Mon, Tue, Wed, Fri, Sat (from Apr. 27), Sun (from May 4), Thu (from Jun. 1) RF371 Kitakyushu (15:45) → Cheongju (17:00) / Tue, Thu, Sat RF374 Cheongju (08:10) → Kitakyushu (09:15) / Mon, Tue, Wed, Fri, Sat (from Apr. 27), Sun (from May 4), Thu (from Jun. 1) RF372 Cheongju (13:30) → Kitakyushu (14:40) / Tue, Thu, Sat
