Hold on here - to all those people thinking that the "Random act of kindness" creates expectations that can't be met - the Captain upgraded 3 1P passengers - ie: those folks have flown AT LEAST 50k miles either last or this year, and perhaps far more over many years. Anyone who flies even half that amount has flown enough to know that upgrades don't happen every day, and to apprieciate the gesture for what it is.
As a 2P some years ago I got an upgrade on IAD-LHR and was surprised like crazy to get it. That doesn't mean the next time I flew that route that I expected it! I ponied up with my certs or whatever when I had them. Same will go with those upgraded 1P's.
I think it was a good thing to do. Anyway, DEN-IAH - does it get a meal or just a snack? Perhaps just even nuts!! In which case UA isn't even wasting "valuable" F meals (ahem). Perhaps it shouldn't happen all the time, because that would be a bad thing, but if a Captain wants to show a bit of initiative, then I'm all for it.
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RichardMEL, UA 1K
A Star Alliance Member.