After going to Canada for the weekend and flying with Calanit, I've developed a simple, but what I think is an effective formula for traveling with children. Take however much time you think you need to do whatever it is (get to the airport, clear customs, etc.) and just multiply it by 2.5. With enough time, I believe, travelling with children can be hassle/stress free, but the TIME is the critical element. Don't wait until the last minute.