日本エアシステム
Initially served by Toa Airways with McDonnell Douglas DC-9 and MD-80 aircraft to Tokyo (Haneda), Sapporo (Chitose), and Osaka Itami, operations were upgraded to Airbus A300 aircraft after Toa Airways became Japan Air System in 1988. These flights were taken over by Japan Airlines after its acquisition of Japan Air System in 2002. However, with the opening of the Tōhoku Shinkansen to Hachinohe in December 2002, the number of passengers has decreased and equipment changed back to the MD-80. Flights to Chitose were discontinued in 2007.