Global Distribution System
A global distribution system (GDS) is a network operated by a company that enables automated transactions between Vendors[disambiguation needed] and booking agents in order to provision travel related services to the end consumers. A GDS can link services, rates and bookings consolidating products and services across all three travel sectors: i.e., airline reservations, hotel reservations, car rentals, and activities.
GDS is different from a computer reservations system which is a reservation system used by the respective vendors. Primary customers of GDS are travel agents (both online and office based) to make reservation on various reservations systems run by the vendors. GDS holds no inventory, the inventory is held on vendors reservation system itself. A GDS system will have real-time link to the vendors database. For example, when a travel agency requests a reservation on the service of a particular airline, the GDS system routes the request to the appropriate airline computer reservations system. This enables a travel agent with a connection to a single GDS to choose and book various flights, hotels, activities and associated services on all the vendors in the world who are part of that GDS.
End-user reservation portals run by GDS companies
Table below lists the various portals run by GDS companies. A customer can view their reservations held in the GDS's own database or using the airlines booking system itself. If a reservation is made through a GDS—there is usually two reservation references, one is called a GDS locator code and the other the actual reservation or PNR number
|Portal Name||GDS Company||URL link||Sector|
|ViewTrip||Travelport (includes Galileo, Worldspan & Apollo||https://www.viewtrip.com/||Airline|
|Check My Trip||Amadeus||https://www.checkmytrip.com||Airline|