Airport Transport Service

Airport Transport Service Co., Ltd. (東京空港交通株式会社, Tōkyō Kūkō Kōtsū Kabushiki-gaisha) is an airport bus operator in the Greater Tokyo Area of Japan. It is based at the Tokyo City Air Terminal (TCAT) in Chūō, Tokyo.^[1]

Airport Transport Service
東京空港交通

Parent	Japan Airport Terminal: 22.64% Keisei Electric Railway: 22.56% Narita International Airport: 11.36% Tokyo City Air Terminal: 11.28%
Headquarters	Chūō, Tokyo, Japan
Service area	Japan
Service type	On-airport and off-airport transfer, Tour bus
Hubs	Tokyo City Air Terminal Tokyo International Airport Narita International Airport
Fleet	489[1]
Daily ridership	8.9 million (FY 2016)[1]
Website	www.limousinebus.co.jp

ATS operates scheduled service to and from the area's two major airports, Haneda Airport and Narita International Airport, operating over 660 buses per day to Narita and over 550 to Haneda. The company also operates scheduled service between TCAT and Tokyo Big Sight, and late-night services from Tokyo to Chiba Prefecture.^[2]

The company also operates bus charter services and on-airport transfer bus services.