Hello, i have a layover @Newark airport. I am flying from Vancouver to Delhi. I have US B-1,B-2 visa. Is it possible for me to travel via this flight? If yes, then what are the COVID-19 restrictions to be followed during the journey?

Make sure you have a negative covid test before getting to Vancouver airport they will ask for it, dont forget your vaccination card. If you are not planning to get out the Newark airport( security area) they would not bother you. But look up India covid restrictions before fly out.

I will say don't get out from security area at Newark airport, and make sure have your vaccine card