I've flown several times and have felt safe. If you can't drive, then fly but do so, smartly.
Fly Delta (they are blocking middle seats until 2021), require masks on board and in the boarding area. If you can afford to, book the aisle and window seat so you have the row to yourself.
The air coming out of the vents is directly out of the HEPA filter. I'm sure I've posted links to articles in this thread but they are easily to find in Google.
At the airport, people were good about social distancing in line (I also have TSA Pre-Check and you only lowered your mask for a moment for TSA to see you are who you are on your ID. TSA is masked. Once in the boarding area (again, Delta requires masks in the boarding area, too).
Just remember how it's transmitted. There's no need for Depends (unless you utilize them already). If you go into a restroom, masked, and don't lick anything, chances of contracting it are slim. You'd have to be in the exact wrong place at the wrong time.