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Thread: Current Flight Schedule, Are there any Hub>Non Hub>Non Hub Domestic Routes?
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Old Dec 24, 2014 | 8:53 pm
  #57  
Miles Ahead
 
Join Date: Sep 2006
Location: ORD
Programs: United Plat 2MM, Hilton Gold
Posts: 2,727
Originally Posted by dfreeman02
I define the set of hubs as the largest set of set of airports on which the mainline route network makes a complete graph
I don't like that definition, since I think the idea of "hub" implies "spokes" being attached. If one starts with the United-provided list of "hubs and key airports" and removes the ones that have no mainline traffic to airports not on that list: BOS, FRA and LHR, one is left with ORD, CLE (with 7 spoke cities), DEN, GUM (with 18 spoke cities), IAH, LAX, EWR, SFO, NRT (with 3 spoke cities) and IAD.
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