In codeshare and operating airlines, flight segments have the same code as the valid airline, but are operated by other airlines. The ITA table is checked between the valid airline and the airline defined in DEI50. Note: DEI50 is an SSIM message that relates to comments displayed in a flight information (DO) message. 50 Duplicate Leg Cross Reference – Operation Leg Identification is the marketing airline`s comment indicating the operating flight number. The Interline Ticketing Agreement (ITA) table refers to the list of airlines that have entered into an existing ticketing agreement with other airlines. Don`t confuse the online ticketing agreement with code sharing or operators: 6X and YY have an electronic ITA, which makes it possible to get an E-Ticket on LH plates. However, flight 6X is operated by another airline (another company) and the issuance of 6X tickets is therefore refused. In case of problems, always check if there are flights on the route made by another company (codeshare). 2. To check the interline agreement between two airlines, enter: TGAD-YY/ZZ (YY being the valid airline and ZZ the second airline). Important: Airline agreements must not be reciprocal. Interlining is when flights are mixed from different airline codes in the PNR route. In this case, the ITA table is checked.

Thus, you indicate the interline ticketing agreements of a valid airline or between two airlines with TGAD entry. The ITA table is checked when using the input: TTP/ET/TKT The above example means that 7X flights can be booked on plate 6X. 1. To view this table, enter: TGAD-YY (YY being the two-digit airline code) Note: in the absence of code sharing, the ticket must be issued under the LH mark, resolution 852 is violated…