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For long-distance journeys, people often prefer to travel by air. It's often cheaper to buy[duty-free|single tickets|return tickets|jet lag|stopover|in-flight meal|passport control], which are for travelling to a place and back again, than to buy several[duty-free|single tickets|return tickets|jet lag|stopover|in-flight meal|passport control]separately.Depending on the airline, you'll be given a choice of snacks and drinks along with your [duty-free|single tickets|return tickets|jet lag|stopover|in-flight meal|passport control]if the flight takes longer than two hours.When you have to change aeroplanes to reach some far destination or when you just want to have some rest in the airport between the flights on long distances, you can have a [duty-free|single tickets|return tickets|jet lag|stopover|in-flight meal|passport control]. Apart from the high price, travelling to a far destination by plane has another disadvantage: most travellers experience bad[duty-free|single tickets|return tickets|jet lag|stopover|in-flight meal|passport control]. This means a person suddenly finds themselves in a place where time is several hours different from the place they left. It makes one feel confused and tired, and it takes some time to adjust to the new schedule.