I brought my drone along on our honeymoon too! Keeping your pack light and only essentials is key. My gear list is a phantom 3, 2 extra batteries, a gopro (with a few attachments) and my a7sii with 2 lenses. All of it fits into a backpack for an adventure. I use the lowepro 450 and it gets on the plane no problem. Here's our honeymoon video: https://www.youtube.com/watch?v=zpP0Z1OCSVQ

It all depends on what you're shooting. It's worth it for our productions. We do 6 camera studio shoots and the GH4 would be unusable in our shoots without the YAGH.