Most U.S. airlines have done away with a minimum height requirement to be hired as a Flight Attendant. Instead, they rely on the catchall concept that you need to be tall enough to do the job, which will include opening and closing overhead bins in the cabin and storage compartments in the galley.
I’ve always wanted to be tall, but I’m just pretty average. According to Tall or Not, I’m the same the same height (5’6”) as: Bridget Fonda, Twiggy, Teri Hatcher, Winston Churchill, Spike Lee, and James Cagney.
Via Jack and Hill.