Originally Posted by
serfty
Back in the pre e-ticket days, a physical ticket was a booklet with 4 vouchers. Each booklet had it's own ticket number.
Your 20 segment xONEx would be comprised of 5 such books of vouchers, often presented stapled together. The five 'tickets' would be recorded in the GDS's under the one PNR.
So 'Many (tickets) to one (PNR)'. I didn't think it could be done the other way.
These conjuncted tickets are considered one ticket. Even today, an "e-ticket" can still only have 4 "coupons," one for each flight, and any open-jaw counts as one. E-tickets still retain all the fields and structure from paper tickets. You will frequently still have xxx xxxxxxxx00-03 or something like this as your e-ticket number.
Yes, it is possible to have more than one set of conjuncted tickets in one PNR. However, it is against most airlines' rule to issue different tickets across married segments. For example, if TPE-HKG-CGK is booked together and HKG is a transit, you can't have TPE-HKG on one ticket and HKG-CGK on another.