[6] HAC's initial routes in 1998 were Chitose-Hakodate, Hakodate-Asahikawa, Hakodate-Kushiro and Asahikawa-Kushiro, followed by Chitose-Kushiro and Hakodate-Memanbetsu in 1999 and Hakodate-Sendai in 2001.

[8] HAC left the Japan Airlines group at the end of fiscal year 2010 (March 2011) as part of the corporate restructuring of JAL.

[9] Japan Airlines ceased ticket handling and reservation services for HAC flights effective September 1, 2011.

[11] HAC recorded losses of 296 million yen and had negative equity of 116 million yen in the fiscal year ending March 2013, and took several measures to improve its performance, including resuming codesharing with JAL and starting service from Sapporo to Misawa in July 2013.

[11] It was revealed in August 2013 that Liberal Democratic Party lawmakers in the Hokkaido government had been pushing JAL to once again take over HAC.