I recently went on vacation as a girl with my wife. I flew en femme in skirt, blouse and high heels, and since I have legal ID with my name and a totally femme picture and had no problem. Flying en femme was a first for me. There was no problem as long as the name on ID and ticket match and picture on ID and how I look match. I could have used my drivers license where I was also dressed en femme, but with an effeminate male look.