Mainland Portugal entry requirements

Without a visa, entry is permitted for a maximum stay of 90 days in a 180-day period.

Young people under the age of 18 need a letter of authorisation with them when leaving or entering Portugal, including Madeira, without their parent or legal guardian. This letter must be signed by the parent or legal guardian and, in some circumstances, may need to be legally certified. You can download the form here and you’ll be asked to show your completed form at the airport. For more information, please visit the Portuguese government website.