The Interline Ticketing Agreement (ITA) refers to the list of airlines that have an existing ticketing agreement with other airlines. Do not confuse Interline ticketing agreements with codeshare or operating network managers: You indicate the interline ticketing agreements of a valid airline or between two airlines with the TGAD entry. 2. To verify the interline agreement between two airlines, please indicate: TGAD-YY/ZZ (YY being the validating carrier and ZZ the second airline). Important: airline agreements should not be reciprocal. If there is a problem, always check for flights in the itinerary that are made by another company (codeshare). In code-sharing and operational carrier situations, flight segments have the same code as the validating carrier, but are operated by other airlines. The ITA table is verified between the validating airline and the airline defined in DEI50. Note: DEI50 is an SSIM message that refers to comments posted in a Flight Information Entry (DO). 50 Duplicate Leg Cross Reference – Operation Leg Identification is the marketing carrier`s commentary indicating the operating flight number. 1.
To view this table, enter: TGAD-YY (where YY is the airline`s double-digit validation code) interline when flights are mixed from different flight codes on the PNR route. In this case, the ITA table is checked. Note: If there is no code sharing, resolution 852 is violated if the ticket is issued under the LH mark. The ITA table is checked if the TTP/ET/TKT input is used The example above means that 7X flights can be booked on plate 6X. 6X and YY have an electronic ITA, so an E-Ticket can be issued on LH. However, flight 6X is operated by another airline (Other airline) and the 6X ticket is therefore refused.