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In the airline industry, available seats are commonly referred to as inventory. The inventory of an airline is generally classified into service classes (e.g. economy, premium economy, business or first class) and any number of fare classes, to which different prices and booking conditions may apply. Fare classes are complicated and vary from ...
Originally designed and operated by airlines, CRSs were later extended for use by travel agencies, and global distribution systems (GDSs) to book and sell tickets for multiple airlines. Most airlines have outsourced their CRSs to GDS companies, [1] which also enable consumer access through Internet gateways.
The departure control system (DCS) is the system used by airlines and airports to check-in a passenger. The DCS is connected to the reservation system enabling it to check who has a valid reservation on a flight. The DCS is used to enter information required by customs or border security agencies and to issue the boarding document.
When a reservation is confirmed, the airline keeps a record of the booking in its computer reservations system. Customers can print out or may be provided with a copy of a e-ticket itinerary receipt which contains the record locator or reservation number and the e-ticket number. It is possible to print multiple copies of an e-ticket itinerary ...
Delta Air Lines aircraft parked on a taxiway at Kansas City International Airport. As of January 2025, the Delta Air Lines fleet consists of 987 mainline aircraft, making it the second largest commercial airline fleet in the world, after United Airlines. [62] [63] [64] Delta Air Lines operates a fleet manufactured by Airbus and Boeing. [65]
Airline timetables are printed pamphlets or folders that many airlines have traditionally used to inform passengers of several different things, such as schedules, fleet, security, in-flight entertainment, food menus, baggage weight restrictions, and contact information.
An airline ticket is a document or electronic record, issued by an airline or a travel agency, that confirms that an individual is entitled to a seat on a flight on an aircraft. The airline ticket may be one of two types: a paper ticket , which comprises coupons or vouchers; and an electronic ticket (commonly referred to as an e-ticket ).
Sabre Global Distribution System, owned by Sabre Corporation, [1] is a travel reservation system used by travel agents and companies to search, price, book, and ticket travel services provided by airlines, hotels, car rental companies, rail providers and tour operators.