@AstroKatie (the other thing is, airPORTS are definitely worse than airPLANES... the HVAC sucks, you're around a lot more people who work hourly and probably can't afford time off (which is JUST WRONG on the part of employers)... and those back-and-forth TSA lines mean you're in close proximity to EVERYBODY not just a few... oof da.
We ran a 241-person masked-and-vaxed event in October. *1* case... pretty sure it was in the airport on the way home, from the timing.)