[1] The current limited express service was introduced in July 1992, but the name was first used from 1956 for an express service operated by JNR between Hakodate and Sapporo.

[2] Trains stop at the following stations: Sapporo - Shin-Sapporo - Chitose - Minami-Chitose - Numanohata - Tomakomai - Shiraoi - Noboribetsu - Horobetsu - Washibetsu - Higashi-Muroran - Wanishi - Misaki - Bokoi - Muroran Services are formed of 5-car 785 series and 789-1000 series EMUs.

All seats are non-reserved, except for car 4, which has improved "u-Seat" accommodation, including AC outlets for personal use.

[1][3] Trains are formed as shown below, with car 1 at the Muroran end.

[3][4] From July 1992 until 30 September 2007, Suzuran services were formed of 4-car 781 series EMUs, with one reserved car (car 4), formed as shown below.