This past August I moved from Japan to Virginia with a 18 month old and two dogs by myself. The trip included 36 hours in airports/on flights, 1 night in a hotel, and 10+ hours in a car. In the following month I also did three 6-12 hour car rides with my crew. It was not ideal, and probably one of the hardest things I've managed, BUT I learned a lot along the way and want to share my tips with you!
For the sake of keeping this a reasonable length I will focus on flights with kids.