I flew with my baby at 3 mos from Detroit to Hawaii with a layover in Cali, 16 hours total 😐He slept most of the time, just have a boob or bottle ready at all times and you should be okay! During take off I made sure that he was nursing so he wouldn't get too upset. I also practiced changing his diaper in my lap as I knew I would be sitting next to my mother, not a stranger, and didn't have the aisle seat