
There are two ways down to Yokosuka and they land you in different parts of town, so the right one depends on what you came for. Here's how a local picks - and why I almost always take the Keikyu.
Don't overthink tickets - just tap an IC card (Suica/PASMO) through the gates. The Keikyu limited express is the one to wait for; the all-stations local train adds 15-20 minutes for the same fare. Fares and times are estimates - check a transit app on the day.
The Keikyu line from Shinagawa is the fastest and cheapest - take a Limited Express (快特) direct to Yokosuka-chuo in roughly 50-70 minutes for around ¥700-800. The JR Yokosuka line is a slower alternative that lands nearer Verny Park and Mikasa.
Yokosuka-chuo (Keikyu) for Dobuita Street and the town centre; Shioiri (Keikyu) or JR Yokosuka for Battleship Mikasa, the park and the Sarushima ferry pier.