Question: The low cost airline known as Skymark Airlines is headquartered at what airport in Japan?

Context paragraphs:
Come Fly with Me (2010 TV series): Come Fly with Me is a British mockumentary television comedy series created by and starring Matt Lucas and David Walliams.  Narrated by Lindsay Duncan, the series launched on 25 December 2010 on BBC One and BBC One HD.  A spoof of British documentaries "Airport" and "Airline", the series follows the activity at a fictional airport and three fictional airlines: FlyLo (a low cost airline), Our Lady Air (an Irish low cost airline) and Great British Air (a major international British airline).

Tuzla International Airport: Tuzla International Airport (Bosnian: "Međunarodni aerodrom Tuzla/Међународни аеродром Тузла" ); (IATA: TZL, ICAO: LQTZ) is an airport near Tuzla, Bosnia and Herzegovina.  Tuzla International Airport is second largest airport in Bosnia and Herzegovina, right after Sarajevo International Airport.  The airport is known as a low cost airline hub of Bosnia and Herzegovina, since it's used by people from Bosnia, the diaspora and travelers from neighboring countries Croatia and Serbia.  The airport is a civilian airport and a military airbase.

Ted (airline): Ted was one of two airline divisional brands of United Airlines.  It targeted vacation locations in the low cost airline market, in contrast to United's high end divisional "sub-fleeted" brand called United p.s..  "Ted" comes from the last three letters in the "United" brand name.  United marketed Ted anthropomorphically and attempted to personify Ted; it used phrases such as "Meet Ted" or "I've Met Ted".

VivaColombia: VivaColombia is a Colombian low-cost airline based in Medellín, Colombia.  VivaColombia is the first true low cost carrier in Colombia.  It is partly owned by the founders of Europe's biggest low cost airline, Ryanair.

Centavia: Centavia (Central European Aviation) was a short-lived Serbian low cost airline.  Its hub airport was Belgrade Nikola Tesla Airport in Serbia while its technical base was in Cologne Bonn Airport in Germany.  The airline declared bankruptcy on November 8, 2006.

Star1 Airlines: JSC "Star1 Airlines" was a Lithuanian low cost airline founded in 2009.  The company was owned by the Star Team Group which was also an owner of the tour operator Star1 Holidays.  The airline operated both regular and charter flights from its base in Vilnius International Airport.  Star1 Airlines was a member of ICAO (code HCW).  Its CEO Martynas Laivys has 15 years of experience in the travel industry.  During the first 6 months of operations Star1 Airlines carried almost 66,000 passengers on its regular and charter routes; company's turnover reached 28 million litas.  Due to financial difficulties, Star1 Airlines suspended operations on 1 October 2010.

Skymark Airlines: 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.

Haneda Airport: 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.

Philadelphia International Airport: Philadelphia International Airport (IATA: PHL, ICAO: KPHL, FAA LID: PHL) , often referred to just by its IATA code PHL, is a major airport in Philadelphia, Pennsylvania, United States, and is the largest airport in the Delaware Valley region and in the state.  The airport is a major international hub for American Airlines and a regional cargo hub for UPS Airlines.  Philadelphia International Airport is also a focus city for ultra low cost airline Frontier Airlines.  The airport has service to destinations in the United States, Canada, the Caribbean, Latin America, Europe, and the Middle East.  Most of the airport property is located in Philadelphia proper.  The international terminal and the western end of the airfield are located in Tinicum Township, Delaware County.  PHL covers 2,302 acres (932 ha).

Vágar Airport: Vágar Airport (Faroese: "Vága Floghavn" ) (IATA: FAE, ICAO: EKVG) is the only airport in the Faroe Islands, and is located 1 NM east of Sørvágur.  Due to the Faroe Islands' status as a self-governing territory, the airport is not subject to the rules of the European Union.  It is the main operating base for Faroese national airline Atlantic Airways and, for a brief period during 2006, was also the base for the low cost airline FaroeJet.

Supporting paragraphs: Haneda Airport Skymark Airlines
Answer: Haneda Airport