Originally Posted by
SFOTurtle
So, does that mean that any domestic flight operated by 777s, 764s and UA domestic 763s reconverted with the new lie-flat C seats will no longer be upgradeable using UDUs? I guess that basically leaves 737s, A320s, A319s, and non-PS 757s (and UX) as flights where UDU would apply.
No, they will, it depends on the route, not the aircraft.