[1] In addition to airline reservations, the Galileo CRS is also used to book train travel, cruises, car rental, and hotel rooms.
Galileo traces its roots back to 1971 when United Airlines created its first computerized central reservation system under the name Apollo.
[3] In response and to prevent possible government intervention, United Airlines spun off its Apollo reservation system, which was then controlled by Covia.
Apollo is still used by Galileo International (now part of Travelport GDS) travel agency customers in the United States, Canada, Mexico, and Japan.
Galileo UK was originally created from Travicom[4][5][6][7] which was the world's first multi-access reservations system using the technology developed by Videcom.