lightmac wrote:Is this "redundance" a coincidence dating from pre-alliance times or are airlines aware and use their lounge designs as marketing tools to win over passengers from the same alliance?
vhtje wrote:You are surely posting this question from a US-centric viewpoint. Moreover, from a domestic travel US-centric viewpoint.
Outside of the US, particularly in large hub airports, it is not unusual for carriers within the same alliance to operate separate lounges, either for reasons of prestige, or because sheer passenger numbers making sharing lounge facilities impractical, or because scheduling of each carrier's respective flights are not conducive to lounge sharing, or because of the commercial arrangements with the airport for the carrier in question.
However, as an elite member of an alliance carrier, or if travelling in a premium cabin, it does mean that one can freely lounge hop at large airports. There are a plethora "which <alliance ABC> lounge is best at <airport XYZ>" threads on expertflyer.com. Lounge hopping is a "thing" - I have done it myself at LHR T3, SIN, HKG... much fun!
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