From an article on possible future air travel restrictions

Thatttt,would eventually run into some sort of accommodation lawsuit would it not? And if not, I can certainly see a lot of states scrambling to pass laws making it so.

I’ve already seen a case during lockdown where a vacation cabin would only rent out to ‘essential people’. My friend the bicycle repair man was happy to get the lodge…

and yes, I did send him the Monty Python clip.

I’ve found some references to that on-line, but it seems entirely speculative.

If such a thing is implemented before a vaccine is widely available, it would kill air travel deader than a doornail. I don’t think any projections imagine everyone in a country will get COVID-19. At the moment, around 97% of the population of the US hasn’t had coronavirus and won’t have antibodies (although testing may prove that many people have had it without symptoms).

The ADA generally does not protect communicable diseases.

It would be people who havent gotten a disease being discriminated against. Not that i think the ADA protecting that either.

It’s already pretty normal – or it was when I was a kid. You can’t/couldn’t get travel visas for some places unless you had a vaccination certificate.

There are countries in the world that have always had internal borders, where they would have no trouble legislating new travel restrictions. The USA isn’t like that, but you could still face travel restrictions imposed by foreign countries – and they won’t care what kind of “accommodation lawsuit” you could start in an American court.

It could certainly happen for international travel because countries get to decide who they allow in and the requirements for visas - but the articles where I could find that sentence weren’t restricted to international travel. They were talking about how flying in general could change on a more or less permanent basis - and I suspect that even in countries with internal borders there must be flights that don’t cross any of them. Once you take out domestic flights in countries like the US without internal borders and other situations that don’t require visas, you aren’t really talking about changes to flying in general.