Originally Posted by tt7
I don't think it's anything to do with "destinations" - rather, it's which OW airlines have interline e-ticketing with the other OW airlines.
And that can have lots to do with the destination. For example, I had a DONE4 which QF wanted to e-ticket as it only contained QF/BA/AA flights. BUT one of the BA flights (BA number and BA metal) was HEL-LHR and BA's ground handling in Helsinki is done by AY, and AY's check-in agents use the AY computer system to do the check-in. They would not be able to see the E-Ticket since AY is not yet part of the OneWorld E-Ticket environment. Therefore I had to pay for a paper ticket to be ussued.