The interline, also known as interline and interline ticketing, is a voluntary commercial agreement between different airlines to treat passengers travelling on routes requiring several flights with several airlines.  Such agreements allow passengers to switch from one flight with one airline to another airline flight without having to pick up their baggage or re-register it. Airlines can also promise a free booking change if the service is interrupted due to a delay. When a ticket is issued for an Interline itinerary, one of the airlines on that route is chosen by the ticket provider as the transmitting airline, commonly known as the Plating Carrier. The coating provider collects the entire tariff from the customer, either through its own distribution channels (e.g.B. website or ticketing office), or through travel agencies. Travel agencies transfer fares and taxes collected through The De Reporting Corporation (ARC) to the airline in the United States or the billing and billing plan (BSP) to the rest of the world. The airline that actually carried the passenger (the exporting airline) sends an invoice to the airline that issues and places, usually through the IATA clearing house, to recover its share of the ticket price and taxes. The airline linked to the operation is responsible for the transfer of passenger taxes to the various governments and airports.
Some taxes are based on sales (U.S. taxes) and are transferred by the issuing airline. Until now, only major network operators such as United Airlines and Lufthansa had electronic ticket interconnection agreements, but IATA`s mandate to remove paper tickets at the end of 2007 changed this situation by requiring smaller airlines to introduce electronic tickets. Interline chords are turning points. For example, American Airlines may be able to issue the ticket on an American United route, but United may not be able to issue on the same route. A single interline agreement is called a one-sided interline. Airlines may also agree to a bilateral interline agreement in which each airline can issue the ticket to the other carrier. Interline E-Ticketing bilateral agreements (BIETA/(passengers only) allow you to get up-to-date information on 10,600 electronic interconnection agreements to update your databases directly.
It is available as an Excel file. Updated daily and accessible via secure access to the ecstasy or distributed via FTP. Airlines participating in airline alliances such as Star Alliance, SkyTeam or oneworld almost always have interline agreements. But direct competitors can also benefit from Interline agreements. Interline agreements differ from code-sharing agreements in that codeshare agreements generally relate to the numbering of a flight with the company`s code (acronym), although the flight is operated by another airline. However, codeshare relationships may affect whether an interline ticket (or e-ticket) can be issued, since the codeshare marketing carrier and code-sharing operator must have interline agreements with all other airlines in the itinerary for a single ticket to be issued.