We're flying at the end of the month with our 4 month old and our 3 and a half year old daughter. Does anybody have and tips? This will be our first flights with children. I am also still feeding my 4 month old breastmilk but exclusively pumping. Has anybody flown with breastmilk? Has anybody flown with a pump? Were you able to have the pump in your carry on or did you have to have it in your check in bag?