Code sharing is a business term which first originated in the airline industry. It refers to a practice where a flight operated by an airline is jointly marketed as a flight for one or more other airlines. Most major airlines nowadays have code sharing partnerships with other airlines, and code sharing is a key feature of the major airline alliances.

The term "code" refers to the identifier used in flight schedule, generally the 2-character IATA airline designator code and flight number. Thus, XX123, flight 123 operated by the airline XX, might also be sold by airline YY as YY456 and by ZZ as ZZ9876.

Under a code sharing agreement participating airlines can present a common flight number for several reasons, including:

Connecting flights - This provides clearer routing for the customer, allowing a customer to book travel from point A to B through point C under one carrier's code, instead of a customer booking from point A to C under one code, and from point C to B under another code. This is not only a superficial addition as cooperating airlines also strive to synchronize their schedules and coordinate luggage handling, which makes transfers between connecting flights less time-consuming.

Flights from both airlines that fly the same route -This provides an apparent increase in the frequency of service on the route by one airline Perceived service to unserved markets - This provides a method for carriers who do not operate their own aircraft on a given route to gain exposure in the market through display of their flight numbers.







Known As: KLM
Full Name: KLM Royal Dutch Airlines (Koninklijke Luchtvaart Maatschappij N.V.)
Country: Netherlands
Hubs: Amsterdam
Callsign: KLM
Real World Web Site:




Known As: LTU International Airways
Full Name: LTU International Airways
Country: Germany
Hubs: Düsseldorf
Callsign: LTU
Real World Web Site: