Originally Posted by
Kiwi Flyer
I interpreted the question as "On which airlines, does same flight number always mean same plane?"
I agree. The fact that all of the US legacies have
some flights that run xxx-hub-yyy on the same planes is meaningless insofar as people who would prefer not to deal with connections are concerned. On WN, by contrast, if I book a flight from BUR to PDX, I
know that I won't have to get off the plane (at SMF, SJC, RNO, or OAK) unless I choose to do so.