Question: Tokyo International Airport, commonly known as Haneda Airport , is one of the two primary airports that serve the Greater Tokyo Area, and is the primary base of Japan's two major domestic airlines, which one is the largest airline in Japan?
Context: Narita International Airport (成田国際空港 , Narita Kokusai Kūkō ) (IATA: NRT, ICAO: RJAA) , also known as Tokyo Narita Airport, formerly and originally known as New Tokyo International Airport (新東京国際空港 , Shin Tōkyō Kokusai Kūkō ) , is an international airport serving the Greater Tokyo Area of Japan.  It is located approximately 60 km east of central Tokyo in Chiba Prefecture, straddling the border between the city of Narita and the adjacent town of Shibayama. Haneda Airport Domestic Terminal Station (羽田空港国内線ターミナル駅 , Haneda-kūkō Kokunaisen Tāminaru eki ) is a railway station on the Keikyu Airport Line in Ōta, Tokyo, Japan, operated by the private railway operator Keikyu.  It is situated directly beneath Tokyo International Airport ("Haneda Airport"). Tokyo Monorail (東京モノレール , Tōkyō Monorēru ) , officially the Tokyo Monorail Haneda Airport Line (東京モノレール羽田空港線 , Tōkyō Monorēru Haneda Kūkō sen ) , is a monorail system connecting Haneda Airport in Ōta, Tokyo, Japan, to Monorail Hamamatsuchō Station in Minato, Tokyo.  The trains operate along an elevated line that follows the coast of Tokyo Bay. Skymark Airlines Inc. (スカイマーク株式会社 , Sukaimāku Kabushiki-gaisha ) is a low-cost airline headquartered at Haneda Airport in Ōta, Tokyo, Japan, operating scheduled passenger services within Japan.  In addition to its base at Haneda, Skymark is the dominant carrier at Kobe Airport and is the only domestic airline operating at Ibaraki Airport north of Tokyo. All Nippon Airways Co., Ltd. (全日本空輸株式会社 , Zen Nippon Kūyu Kabushiki gaisha ) , also known as Zennikkū (全日空 ) or ANA, is the largest airline in Japan.  Its headquarters are located at Shiodome City Center in the Shiodome area of Minato, Tokyo, Japan.  It operates services to both domestic and international destinations and had more than 20,000 employees as of March 2016.  In May 2010, ANA's total passenger traffic was up year-on-year by 7.8%, and its international services grew by 22% to 2.07 million passengers in the first five months of 2010.  ANA's main international hubs are at Narita International Airport outside Tokyo and Kansai International Airport outside Osaka.  Its main domestic hubs are at Tokyo International Airport (Haneda), Osaka International Airport (Itami), Chūbu Centrair International Airport (near Nagoya), and New Chitose Airport (near Sapporo). Tokyo International Airport (東京国際空港 , Tōkyō Kokusai Kūkō ) , commonly known as Haneda Airport (羽田空港 , Haneda Kūkō ) or Tokyo Haneda Airport (IATA: HND, ICAO: RJTT) , is one of the two primary airports that serve the Greater Tokyo Area, and is the primary base of Japan's two major domestic airlines, Japan Airlines (Terminal 1) and All Nippon Airways (Terminal 2), as well as Air Do, Skymark Airlines, Solaseed Air, and StarFlyer.  It is located in Ōta, Tokyo, 14 km south of Tokyo Station. Japan Airlines Co., Ltd. (JAL) (日本航空株式会社 , Nihon Kōkū Kabushiki-gaisha , , OTC Pink: JAPSY) , is the flag carrier airline of Japan and the second largest in the country behind All Nippon Airways.  It is headquartered in Shinagawa, Tokyo, Japan; and its main hubs are Tokyo's Narita International Airport and Tokyo International Airport (Haneda Airport), as well as Osaka's Kansai International Airport and Osaka International Airport.  JAL group companies include Japan Airlines, J-Air, JAL Express, Japan Air Commuter, Japan Transocean Air and Ryukyu Air Commuter for domestic feeder services; and JAL Cargo for cargo and mail services. Japan Air System Co., Ltd. (JAS) (日本エアシステム , "Nihon Ea Shisutemu" ) (IATA: JD, ICAO: JAS, Call sign: Air System) was the smallest of the big three Japanese airlines.  In contrast to JAL and ANA, its international route network was very small, but its domestic network incorporated many smaller airports that were not served by the two larger airlines.  As an independent company, it was last headquartered in the JAS M1 Building at Tokyo International Airport (Haneda Airport) in Ōta, Tokyo.  It has since merged with Japan Airlines. Japan Airlines Flight 446 was a Japan Airlines flight from Sheremetyevo International Airport of Moscow, Russian SFSR, Soviet Union to Tokyo International Airport (Haneda Airport) in Ōta, Tokyo, Japan. The Keikyu Airport Line (京急空港線 , Keikyū Kūkō-sen ) is a 6.5 km commuter line operated in Japan by the private railway operator Keikyu.  It connects Keikyu Kamata with Haneda Airport Domestic Terminal (at Tokyo International Airport) in Tokyo, and has Airport Express (エアポート急行), Limited Express (特急, 快特) and Airport Limited Express (エアポート快特) services, virtually all of which continue along the Keikyū Main Line either north to Shinagawa Station in central Tokyo with some trains continuing onto the Toei Asakusa Line, or south to Yokohama Station and onward towards Shinzushi Station.
Answer: All Nippon Airways Co., Ltd.