B737, No need to say the word 'sorry', I mean I feel like a dunce for omitting LAS. Talk about Originating and DESTINATION passengers, OMG, plus LAS isn't a Hub in the sense that MDW/BWI and DEN are.
Also, a bit of speculation here, (from 'some' rumors i've heard, bouncing around about Frontier and Spirit becoming a single airline). I'd be SHOCKED if Gary Kelly & co. hadn't thought looooong and hard about that possible scenario before they made the huge commitment that they have with regard to DEN, and DEN being frontiers home, and Frontier very likely being the survivor in a hypothetical merger. Your thoughts plz.