I made the mistake of flying without mask before we knew it was in more than coastal cities and being transferred across the country by commercial airlines. It was that new. Now I know. I have not flown since. I would not fly now, with the number of cases multiplying at the daily rate they are, presently, as I do not have to. Last time I flew, I caught it. I will be looking at transmission and infection rates in December before planning our next ski trip. I am kind of hoping they offer a Moderna booster in December. It is unlikely I will give up skiing. Driving is not outside the possibility, but I would rather land and pick up a large 4-wheel drive SUV, leaving my vehicle home, but I have through December to decide. If we fly, we will definitely mask, as 3 in our party caught it (all of us on that same flight) and know Covid will completely Fk up a ski trip at mountain altitudes, no matter what kind of shape you are in before leaving.