Originally Posted by
JenF
At the airport we were told (by three different people) the flight was cancelled due to:
1. A mechanical issue
2. A missing pilot (one can only hope the found him/her!)
3. Weather
so it did seem like United staff weren't entirely sure why the flight had been cancelled.
Hi
JenF, welcome to Flyertalk! As others have suggested, irregular operations (IRROPS) on UA have been quite challenging the last couple months. In these situations, I always check the mobile site (mobile.united.com) to see what the reason for any delay/cancellations is. If it's mechanical, I take a screenshot. I believe there is an official documentation somewhere, and I'm sure one of the UA employees who post on this board will chime in. At this point the mobile site won't help you, but a possible way to explain two out of those three is a weather related delay or cancellation at another airport caused you to be one pilot short and they couldn't locate another. If you want to pursue this a little further, you could try sending a private message
UA Insider.