Seaborne Virgin Island Inc, operating as Seaborne Airlines, is a FAR Part 121 airline headquartered in Carolina, Puerto Rico, near the territory's capital of San Juan. It operates a seaplane shuttle service between St. Croix and St. Thomas. Originally headquartered on St. Croix in the US Virgin Islands, the company relocated to Puerto Rico in 2014. Since April 2018, the airline has been owned by its parent company Silver Airways. History Seaborne Airlines was established in St. Croix, US Virgin Islands by founders Ken Dole and Charles Slagle in 1992. The airline initially operated seaplane sightseeing tours with De Havilland Canada DHC-6 Twin Otters, prior to obtaining its FAR Part 135 status and beginning scheduled passenger service in 1994. The airline later obtained its FAR Part 121 status on March 20, 1997. In 2000, the airline was purchased by a new group of investors who began the push from a pure seaplane business to include land-based flights. In 2001, the airline began seaplane service to San Juan, Puerto Rico, serving Fernando Luis Ribas Dominicci Airport, also known as Isla Grande Airport. In late 2008, the airline launched land-based air services to San Juan from both St. Thomas and St. Croix, under the "Seaborne Airshuttle" brand name. On March 1, 2010, Seaborne Airlines announced Vieques, Puerto Rico as a new destination, with flights to Antonio Rivera Rodríguez Airport from both San Juan and St. Croix for launch on March 18. On December 15, 2010, the airline announced new services to San Juan's Luis Muñoz Marín International Airport from St. Croix, St. Thomas, and Vieques, for launch on January 12, 2011. On October 8, 2012, the airline announced new services to Tortola and Virgin Gorda on the British Virgin Islands, serving Terrance B. Lettsome and Virgin Gorda Airports with flights beginning on December 8. On April 1, 2013, Seaborne Airlines launched its first services with its new Saab 340B aircraft following FAA certification of the type in March. The Saab 340B was also launched alongside a new route to Portsmouth, Dominica, serving Melville Hall Airport (later renamed to Douglas–Charles Airport). Starting in 2013, Seaborne Airlines began partnering with other airlines through interline and codeshare agreements, with American Airlines as its first partner with interlining agreements on February 14, 2013, followed by codeshare agreements on June 24, 2013. As part of the partnership, the schedules of Seaborne's new services from San Juan to