Transfer from Yokohama cruise terminal to Narita airport

I’ve heard that some cruise lines provide free shuttle buses to Yokohama station, but you'll need to ask about free shuttle at your cruise company. If they don’t provide one, you can easily catch a taxi from the port to the station.

Once you get to Yokohama Station, you have 2 options, to take the train (Narita Express or NEX)  or the airport limousine bus that runs directly to the airport.

http://www.limousinebus.co.jp/en/bus_services/narita/ycat.html

The limousine bus(3,600yen) is slightly cheaper and takes about the same time as the NEX train(4,090yen) and it’s hassle free as you don't have to handle your luggage yourself.