Taxi to Yokohama Station, then take the JR Narita Express train. Most economical and quickest way. or you could do taxi to Yokohama Station and take the YCAT bus to Narita. The cruise terminal in Yokohama is not remotely close to Narita or downtown Tokyo, so as most are seeing/saying, taxis are incredibly expensive and not really the best option. Our train system is second to none, remarkably easy to use, and cheap.