Originally Posted by
flyingcrooked
Is there any reason to think the situation is not clear? A Latitude booking, regardless of fare class, is eligible for instant upgrade if R or N space is available, in that it has a clearance window that is always open. I haven't seen any reason in this thread or the general eupgrade thread to think that has changed. And the cheaper ex-Europe latitude fares that book into classes other than Y and B don't have access to hidden upgrade space, or at least much less access (I assume no access but don't think we have proof of that).
In the same way that a PE Flex is eligible for instant upgrade if R space is available ? Or does the PE Flex by virtue of its much higher cost have more access/trump Latitude bookings ? My Latitude (K fare) shows waitlisted and on the same flight the PE Flex shows upgrade available (not sure if any R space is actually available on my flight, but I suspect not).