If you are enroute and your flight is delayed and you need to rebook, bypass the ticket counter and call the airline for rebooking. This may save your time. Avoid delays by calling the airline before you head to the airport. If you are traveling with children, let them know ahead of time that delays can happen. Engage them in quiet activities, such as reading books, etc.
Lack of exercise is one of the worst aspects of long-haul flying.
Do stretching exercises in your seat, especially for the legs, go for walks up and down the aisle. Remember that traveling to high altitudes for ski vacations may take some adjustment. Upon arrival, drink plenty of liquids, restrict vigorous activity for the first day, and avoid alcohol and caffeine for the first twenty four hours. Altitude illness can spoil a vacation, causing nausea, headache, and difficulty breathing. Tour guides, leaders and bus drivers should be tipped.