It looks like I'll be flying 8 hours with my 4.5 month old this week. I need tips and I have a few questions. Will I have to change him in my lap? How do I keep bottles warm? If I have pumped bottles will the airport allow ice packs? List of what I'll need? Also how to keep baby quiet and calm at funeral? He's recently started squeeling very loudly. What all can I bring on my carry on?