Originally Posted by
RooseveltL
Once you get the red ! - it allows you to rebook typically within 250 miles whether same day or future days if seat are available.
Sort of. UA picks up to ~5 alternate airports in the app; you often get a couple more choices on the web. If your desired airport isn’t in the ones that UA pre-selects, though, there’s no way (that I know of) to override it; you’d have to call at that point.
Originally Posted by
s0ssos
There's paperwork required to enter Canada?
It depends upon your passport.