As of March 2013[update], stops and service patterns are Notes: The Nikko Line opened (dual track and electrified) on 1 October 1929.

[3] In 1943, the section north of Kassemba was reduced to single track and the recovered rails were used to build the Tobu Kumagaya Line.

[3] From October 1960, new 1720 series "Deluxe Romance car" EMUs were introduced on limited express services to and from Nikko.

[3] From 1 June 1990, new 100 series "Spacia" EMUs were introduced on limited express services, and the maximum speed of these was raised to 120 km/h in 1992.

[3] A connecting track at Kurihashi was built to the JR-East Tōhoku Main Line (Utsunomiya Line) from 18 March 2006, allowing through-operations of Nikkō and Kinugawa limited express services to/from Ōmiya, Ikebukuro, and Shinjuku.