If your flight is that long I would take food with you? I dunno about the water cause they have gotten sooooo strict...I know Tiny and I are flying Thurday and they told me to feed him 2 hours prior to hte flight and no food in between..But our flight is only 2 hours long...Call the airline and find out? See if you will have time to let him outside at the airports in between flights? Good Luck and Have a good flight and a good time....