Whether you need a transit visa for a layover in Zurich depends on your nationality and whether you intend to leave the airport. For most travelers, including UK, US, and EU citizens, no visa is required for a layover regardless of length, as long as you stay within the international transit area of the airport. However, citizens of certain countries (such as India, Pakistan, or many African nations) may be required to have an Airport Transit Visa (A-Visa) even if they do not leave the terminal. If your layover is longer than 6 hours and you wish to leave the airport to explore the city of Zurich, you will be entering the "Schengen Area." If your nationality requires a visa for Switzerland (like an Indian or Chinese passport holder without a valid US/Schengen residency), you will need a standard Schengen Visa (C-Visa) to clear immigration and exit the terminal. As of 2026, the ETIAS (European Travel Information and Authorisation System) is required for previously visa-exempt non-EU citizens (like those from the UK or US) to enter the country. Always check the official Swiss Consulate website for your specific passport to ensure you have the correct authorization to step outside the terminal doors.