No. Masks are required though in all airports and all airlines.
Nope, just a mask
No
Your destination might. But to travel within the continental US no from what I've read.
No. Not within the United States but you do have to wear a mask on/in airport property and on planes.
Travel within the United States no I don't believe so however if you'll Final Destination is outside the United States than some might will be yes
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