Very good friends getting married in the US in November. We will have a 12 week old and a 2 year old (27 months). We are looking at breaking the trip into 3 short day time legs rather than the monstrous direct route, likely stopping overnight in nZ and a few nights in Hawaii. The most we have so far travelled with our 2 year old is 1 hour on a plane and 12 hours in the car. She was very good. The unknown is the baby which hasn't quite arrived yet (3 weeks to go or so). Any tips would be appreciated!