As a frequent flyer have seen many overweight flight attendants, it is how they interact with the passengers that is important, not their size, so go for it and hope you get your dream job.On a recent flight with AA one of the flight attendants virtually went down the aisle sideways she was so large but she had a great personality, and on my last flight with BA the purser was also quite large but again had the personality for the job. I hope the days of size discrimination are long gone.