The trains connect the Shōnan region of Kanagawa Prefecture with central Tokyo.

There are ten inbound (morning) and eleven outbound (evening) Shōnan services each weekday, taking 69 to 86 minutes between Tokyo/Shinjuku and Odawara.

The Shōnan operates between Tokyo or Shinjuku and Odawara, mainly on the Tōkaidō Line.

Legends: There were seven inbound (morning) and nine outbound (evening) Shōnan Liner services each weekday, taking 71 to 91 minutes between Tokyo and Odawara.

The Shōnan Liner operated between Tokyo and Odawara, mainly on the Tōkaidō Line.