I don't find it particularly more difficult to travel with film in 2025 than it was in 1982, the first time I took a flight with film. There's one extra step... ask for a hand inspection. And nearly all airports in the world with the new CT scanners will action this now. I usually travel with *at least* three film cameras and a ziploc bag of film. It's actually no more difficult than travelling with lip balm in your cabin bag was with the X-ray machines. I simply accept that the new CT scanners are in place because they benefit the 95% or whatever it is who travel with tablets, laptops and lip balm and not film. It's not a big imposition on us though. It's not like film is banned or frowned upon. Thus far perhaps I've been lucky but I've had nothing but positive experiences with airports in London (Luton, Gatwick and Heathrow), Helsinki, Lanzarote, Mallorca, Tokyo Narita, Kansai International, O'Hare, Dallas Fort Worth, NW Arkansas. In fact I find things are better now than a few years ago because younger staff seem to have received info/training about film. Before all this, I'd get bemused looks, extra security checks, questions as to why I had 7 cameras in my cabin bag (I couldn't fit 8). And even those weren't a huge deal. Maybe an extra five minutes. When I'm about to fly for anything from 3 to 13 hours is any of that really an imposition? I don't think so. Obviously YMMV and people generally don't like changes. But certainly my experience is that flying with cameras and film as actually a little less unpleasant than 6 years ago. Off to Crete in a few weeks, probably taking at least four film cameras including super 8.
Why do I do it? Because I enjoy the choice of digital, colour negative, B&W negative, cine, and often one MF camera. I find it fun. And I don't find the airport security much of an imposition. I was a little anxious the first couple of times I had to ask for a hand inspection but it's second nature now. I know I would enjoy the photography aspect of travelling less if I limited myself to digital. And I would be imposing that limit on myself, because there's absolutely no restrictions on flying with film.