Make sure that their seat belts are fastened properly before taking off and before landing also listen carefully to the instructions given by flight attendants. if is okay to have them bucked to their belts at all times since there could be turbulence when the flight is in mid-air. Also, bring double the baby supplies you normally need. If your flight gets delayed or on rare occasions if it gets cancelled these precautionary measures might come in handy. Bring twice as much as milk powder, diapers, baby snacks and foods also carry a few pairs of clothes in your hand luggage.