Yes, once you get on the plane. But every so often, the gate agent says that the suit counts as a third carry-on and makes me stuff it into my roller bag instea

Yes, once you get on the plane. But every so often, the gate agent says that the suit counts as a third carry-on and makes me stuff it into my roller bag instead, even if I'm flying first class and going to hang it as soon as I got onto the plane (and even if not, it fits on top of roller bags in the overhead compartments). Just pure malice on their part. Fwiw, I've almost always been allowed to hang it once I'm on the plane. And 90% of flight attendants are extremely pleasant. But there are also plenty of tyrannical ones who cherish every bit of authority they get. Between the unionization and lack of competition in the airline market, airlines feel it's worse for their bottom line to try to discipline bad flight attendants than to treat their customers well.