Originally Posted by
Pharaoh
Recall also, that in a PNR there can be many segments in addition to actual flying segments. So the total can be more than the 16 or so in this example.
For example, there are segments for waitlisted flights, hotel and car bookings, null segments to account for ground/other transport (aka open jaw or ARNK), and others.
Wish I could find my IATA manual to get a definitive max number.
Tickets are limited to 16 flight legs. That is why all the airline RWT products are now limited to 16 legs. RTWs used to be limited to 20 legs, but only 16 could be processed at ticketing, then the RTW ticket needed to be reissued mid-trip after at least 4 of the jegs were travelled. I had to do such a reissue several times mid-trip.