Many countries charge a departure tax when leaving the country. Often, this amount is included in the ticket price. But it can also happen that the departure tax is levied even before you leave the country. You can pay at the airport in local currency. Overall, this is still the case at airports in Asia, Central and South America, the Caribbean and New Zealand. Therefore, check upon arrival at the airport of your destination if you have to pay departure tax on the return trip. Traveling within Europe? Then you can assume that the departure tax is already included in the airport taxes in your ticket.