Zurich Airport (ZRH) is the largest international airport in Switzerland and serves as the primary hub for Swiss International Air Lines. In terms of European rankings for 2026, it is considered a major hub but is "medium-large" compared to giants like Heathrow or Paris CDG. It handles over 30 million passengers annually and features three airside piers (A, B, and E). Despite its significant traffic, Zurich is world-renowned for its efficiency and compact layout; the underground "Skymetro" automated people mover connects the main terminal to the satellite gates in just three minutes. The airport also functions as a massive retail destination known as "The Circle," which includes a park, hotels, and over 270 companies. For travelers, its size is manageable enough that the minimum connection time is a mere 40 minutes, a feat rarely achieved by airports of its importance, making it a favorite for those who dislike the overwhelming scale of larger mega-hubs.