Airline hub
airport that an airline uses as a transfer point to get passengers to their intended destination From Wikipedia, the free encyclopedia
An airline hub is an airport that an airline uses as a transfer point to get passengers to their intended destination.[1]

The airport is part of a "hub and spoke model".[1]
Some airlines may use only a single hub, while other airlines use multiple hubs.[2] for example British airways hub is London Heathrow.[3]
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References
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