United is dropping their service between Denver and London, but is delaying the effective date so as not to affect Worldcon. Details from the Denver Business Journal.

Just as I get elite status somewhere, they start going to heck. (I'd much rather be elite on BA, but UA's the contract carrier LON-WAS, and anyhow DoD employees aren't good enough to fly EU airlines under the partial repeal of the Fly America Act, so the trips for work made the decision for me.)