The largest flying American flag in the world measures a total of 7,410 square feet and is a hung on a pole that stands over 225 feet in the air.
It was initially erected by the Gastonia AMVETS Post 920 in 1999:
The actual flag measures 65 feet tall and 114 feet wide with a total weight of 180 pounds. It can be clearly seen from over 30 miles away.
There are 2 flags larger than this in California, but neither is flown, and there is a larger ‘free-flying’ flag that not hangs over the George Washington Bridge, that was installed in 2013.