Unfortunately airlines sometimes have to make schedule changes and during these trying times more so than normal. Request a return for a different day when the morning connection will operate, could even be the following day.
the country of destination is what regulates what you need or not,,,,Thailand have several options right now,, and then pick the one that works for you.
when you check-in with the airline the expiration will pop up as not meeting the 6 month validity passed your intended stay and will therefore not be able to travel. my friend got their new pp in about 5 weeks recently.