I had a business trip with some free time in the evening, so I took my photo gear with me, but on the last moment, decided to leave my film camera at home because I did not want to ruin the film with X-ray scans in airports. I wasn't going to stay long enough to buy, shoot and develop a film during my stay, which seems to be the best way of avoiding X-ray scans.
I want to be better prepared next time, so what would the best practice to travel with undeveloped film?