Thanks for the replies. My brother honestly brought his PC from US to PH (direct flight) a few years ago, it was in a box and no one touched it. Maybe we were lucky. Maybe boxes are better since they're harder to open when they're all taped up? I'm just very concerned about the layover. I'm thinking I'll just remove all the important/more expensive parts and put them in my carry on, and then risk the case+motherboard+psu in my check-in since I'll be fine if those get lost 😣