New Chitose Airport
From 1 July 1992, with the opening of , "Lilac" services were changed to operate between New Chitose Airport and Asahikawa via Sapporo, where trains reversed. Between Sapporo and New Chitose Airport, trains operated as the "Airport" rapid service. At the same time, the services to Mururan were split off to become the "Suzuran" limited express. The "Lilac" services supplemented the "Super White Arrow" services between Sapporo and Asahikawa, which stopped at fewer stations. The "Lilac" services operated hourly, departing from Sapporo and Asahikawa at 30 minutes past the hour, taking 1 hour 30 minutes.