Matthew Garrett on Nostr: If you're not familiar with Timatic then United has a convenient form at that you can ...
If you're not familiar with Timatic then United has a convenient form at https://www.united.com/en/us/fly/travel/trip-planning/international-travel-requirements.html that you can fill in and it'll show you exactly what the checkin agents get shown about what paperwork you need for a flight and it's pretty fascinating (I've had the fun experience of violating these constraints with a letter issued by the US embassy in London and I do not recommend that experience)