Lisbon Humberto Delgado Airport (LIS) is considered a large and major European hub, currently ranked as the 18th busiest airport in Europe as of early 2026. However, its "feel" is often described as cramped or over-capacity because it is an older facility hemmed in by the city's residential neighborhoods. It features two terminals: Terminal 1, which handles the vast majority of international and full-service carriers, and Terminal 2, a much smaller, no-frills facility dedicated exclusively to low-cost airlines like Ryanair and easyJet. While it handles over 30 million passengers annually, the airport’s layout often leads to long walking distances and significant congestion at security and passport control. For 2026 travelers, the airport’s size is less about vast physical acreage and more about the high volume of "hub-and-spoke" traffic it manages between Europe, South America, and Africa.