I have flown several time with meds lately-I just put the HS, pulmozyme, and tobi into ziplock bags with the Rx I get with them (mine come with a portion I can rip off that says what the med is and my name on it). No problem whatsoever. I always take it out through security. I have it in an insulated lunchbag thing with an icepack. The nebulizer I take out too-one time the ran some chemical tracing thing over it-but this last time they didn't.