You have to fit in the jump seat not an airplane seat. Delta uniform sizes for FA are upto 24, so you should be fine. Goodluck !

Thankyou so my for getting back to me ! I very much appreciate it! Best of luck to you!

I have a question, I am a size 18, im 5'9 and can fit just fine in an airplane seat and do not ever need a seatbelt extender, i know 18 is not massive but at the face to face were there any other people who may have been my size or are they all skinny girls??