I’m starting to worry about that. One is beginning to cough.
If there is any doubt, then there is no doubt. Catch the next plane. For some real fun, if they are from elsewhere, tell your fellow passengers why you are taking the next flight, and watch the fun ensue.
I highly recomnment at least going to an airport store and buy a handkerchief to werar over your mouth and nose throughout the flight AND buy hand sanitizer and dont touch anything on that plane that you do not need to.Droplet transfer of TB baccillus tends to live a while on surfaces! (like tray tables, etc)