Narita Airport -> Yokohama
Narita International Airport
https://www.narita-airport.jp/en
Route 1 (most convenient)
Airport Limousine (100 min., 3600 Yen)
Narita Airport Terminal No.1 North -> Yokohama City Air
Terminal (YCAT)
Route 2 (economical)
Keisei Narita Sky Access
Narita Airport Stn. -> Shinagawa Stn. (83 min., 1520 Yen) Keikyu Line
Shinagawa Stn. -> Yokohama Stn. (21 min., 300 Yen)
Route 3
Keisei Skyliner
Narita Airport Stn. -> keisei-Ueno Stn. (45min., 1235 Yen), (change lines: 2 min. walking distance) JR Ueno-Tokyo line / Tokaido line
JR Ueno Stn. -> Yokohama stn. (30 min., 550 Yen)
Route 4
JR Narita Express (requires seat reservation)
Narita Airport Stn. -> Yokohama stn. (90 min., 4094 Yen)
Haneda Airport -> Yokohama
Haneda Airport International Terminal
http://www.haneda-airport.jp/inter/en/
Route 1
Airport Limousine
Haneda Airport International Terminal -> Yokohama City Air Terminal (YCAT)
(50 min., 580 Yen (midnight 1030 Yen))
Route 2
Keikyu line
Haneda Airport International Terminal -> Yokohama Stn. (30 min., 480 Yen)