Originally Posted by
Eracine
+1 to that. I've only been able to change a trip online *once* - all other attempts over the last few years failed exactly as per the above.
I haven't figured the pattern yet, although I typically get this error when using a web browser on a PC or on iOS. I don't recall trying to change via the United app; so it may be a website-specific issue.
With more data points, I hope someone will eventually figure it out... By any chance, are you initially starting from a localized United website (i.e. non-US) page, as I do?
I've tried non-US and US based website. I've been able to do modifications before, and even this one almost worked. It just seems like something broke overnight because United's facebook page has plenty of the same comments. People stranded in airports with no way to change flights.
There's absolutely no excuse for how poorly they're handling this. They can't do the simple task of taking my desired itinerary that+ cancelling the old one, which costs a lot more.