Not for DL apparently. DL is terrified, horrified, of JB in BOS and refuses to compete, doesn't want it, can't handle it and is content to be a distant second or even third forever. DL could get it back and dominate it with ease, but that would require short term yield degredation. Its better to permanently surrender mass quantities of markershare forever than to bleed a little yields short term.

I agree though. We have to get to what "hub" really means. There's enough O&D out of CVG to justify its current size, less a few more 50 seat RJ markets here and there than can also be consolidated to other "real hubs". But the proximity to another "hub" doesn't mean an existing "hub" should "close" (whatever that means) if there's enough O&D to support a "hub" in the first place.

Mileage alone is only one of many factors and by itself its very minor.