Question: Which is located outside the mainland US, Fernando Luis Ribas Dominicci Airport or Appleton International Airport?
Context: Isla Grande, is an area in Puerto Rico that today is also known as the Convention Center District, and is formerly known as Miraflores, roughly bounded by Miramar, the Condado Lagoon, the Dominicci Airport of Isla Grande (SIG) and the Port of San Juan.  Isla Grande is located in the district of Santurce, San Juan, Puerto Rico, United States. Appleton International Airport (IATA: ATW, ICAO: KATW, FAA LID: ATW) , formerly "Outagamie County Regional Airport", is an airport located in Outagamie County, Wisconsin, United States, just west of Appleton in the town of Greenville.  It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a non-hub primary commercial service facility.  It is the fourth-busiest commercial airport in Wisconsin in terms of passengers served.  In 2016 the airport contributed $676 million dollars to the Northeastrn Wisconsin economy. Benazir Bhutto International Airport (Urdu: ‎ , IATA: ISB, ICAO: OPRN ) is the third-largest airport in Pakistan, serving the capital Islamabad and its twin city Rawalpindi in the province of Punjab.  Previously known as the Islamabad International Airport, it was renamed after the late Pakistani leader Benazir Bhutto by the then Prime Minister of Pakistan, Yusuf Raza Gillani on 21 June 2008.  The airport is actually located outside Islamabad, in the area of Chaklala, Rawalpindi.  Being the main airport for the Pakistani capital it often hosts officials and citizens from other nations.  The airfield is shared with the transport and liaison squadrons of the Pakistan Air Force, which refers to it as PAF Base Nur Khan. 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). Air Wisconsin Airlines is a regional airline based at Appleton International Airport in the town of Greenville, Wisconsin, United States, near Appleton.  Air Wisconsin is the largest privately held regional airline in the United States.  It currently operates regional jet flights as American Eagle under contract to American Airlines via a code sharing agreement, serving cities in the U.S. and Canada with hubs at Boston Logan International Airport (BOS), Charlotte Douglas International Airport (CLT), Philadelphia International Airport (PHL) and Ronald Reagan Washington National Airport (DCA) .  Air Wisconsin previously operated United Express service on behalf of United Airlines followed by US Airways Express service on behalf of US Airways prior to becoming an American Eagle regional air carrier.  The company has announced it will once again partner with United Airlines as a United Express code sharing air carrier with primary hubs to be located at Chicago O'Hare International Airport (ORD) and Washington Dulles International Airport (IAD) beginning in September 2017 and will be "exclusively operating" as United Express by March 2018. Casa Fernando Luis Toro (English: "Fernando Luis Toro Home") is a historic house in Ponce, Puerto Rico.  The house is unique in that it is located in the first upper-class suburban development built in Puerto Rico, La Alhambra. Islamabad is connected to major destinations around the world through Benazir Bhutto International Airport, previously known as Islamabad International Airport.  The airport is the third largest in Pakistan and is located outside Islamabad, in Chaklala, Rawalpindi.  In fiscal year 2004–2005, over 2.88 million passengers used Benazir Bhutto International Airport and 23,436 aircraft movements were registered. Fernando Luis Ribas Dominicci Airport (IATA: SIG, ICAO: TJIG, FAA LID: SIG) , also commonly known as Isla Grande Airport, is a small airport in Miramar, which is a district in the municipality of San Juan, Puerto Rico.  It is owned by the Puerto Rico Ports Authority and is adjacent to the new Puerto Rico Convention Center, the San Juan Bay, and the Pan American Cruise Ship Terminal, and overlooks Cataño.  While Isla Grande's main operation is with general aviation, it is still a commercial airport, dealing with some domestic and international commercial flights. Utuado (] ) is a municipality of Puerto Rico located in the central mountainous region of the island known as "La Cordillera Central".  It is located north of Adjuntas and Ponce; south of Hatillo and Arecibo; east of Lares; and west of Ciales and Jayuya.  In land area it is the third-largest municipality in Puerto Rico (after Arecibo and Ponce).  According to the 2000 US Census, the city has a population of 35,336 spread over 24 wards and Utuado Pueblo (the downtown area and the administrative center of the city).  The name Utuado derives from the Taíno word "Otoao", meaning "between mountains".  The municipality is known as "La Ciudad del Viví" meaning "The City of the Viví", derived from the Viví River which runs through Utuado: one river branch comes from Adjuntas and the other from Jayuya.  These two rivers then meet near the Fernando L. Ribas Dominicci Avenue and continue the journey to Lago Dos Bocas. General Rodolfo Sánchez Taboada International Airport (IATA: MXL, ICAO: MMML) Is an international airport located outside Mexicali, Baja California, Mexico, near the U.S.-Mexico border.  It is the northern-most airport in Mexico.  It is named after Mexican military officer, politician and former Governor of Baja California Rodolfo Sánchez Taboada.
Answer: Fernando Luis Ribas Dominicci Airport