Originally Posted by
irishguy28
There are no "published benefits" for separate PNRs and separate tickets. You get the standard benefits on each of those tickets, but they are - and will always remain - two separate tickets. You can never "engineer" them into a single connecting itinerary, having purchased them as two separate tickets.
Protection is, in general, intended only for passengers on connecting tickets.
To be clear, it is oneworld's policy to protect customers who have 2 separate tickets issued in the same PNR. If you have different PNRs you are out of luck, but this is not the case when you have 2 tickets in the same PNR. Usually, 2 tickets are 2 tickets as you said, but oneworld being an alliance does provide extra protection in this particular case if everything is in 1 PNR.