To be clear...UA934 did NOT cancel yesterday. It left at 712pm (12 minutes after it's original delayed departure time of 700pm) and arrived LHR on a normal schedule after that. It did go out with Polaris full but PE+ and E had a ton of open seats.

Also, every other EWR-LHR was zeroed out yesterday long before UA934 ever delayed. I was watching those flights like a hawk and a single seat would open here and there but get gobbled up immediately.

-RM