You generally cannot fly other airlines for at least 6 months.

ZED tickets, which US has, are better than ID90s. I have not used an ID90 in over 10 years- too expensive!

Good luck to you! I have never been stuck anywhere in almost 900,000 miles of nonreving, so it can be done.
I have not made it on flights at my home airport though, but then you just go home.