Zürich Airport — Zurich, Switzerland

As Switzerland's busiest air hub by a wide margin, Zurich Airport, ZRH to the airlines and travelers who pass through it, sits in Kloten, just north of the city center, and functions as the country's principal gateway for intercontinental travel. Three runways arranged in a triangular pattern let the airport manage heavy traffic despite noise agreements with neighboring Germany, whose airspace lies close enough to still shape approach and departure routes. The airport served for decades as the home base of Swissair, a carrier once celebrated for reliability before its 2001 collapse, and it now anchors Swiss International Air Lines, part of the Lufthansa Group, which routes long-haul flights through Zurich toward North America, Asia, and beyond. Beyond the terminals, a mixed-use development called The Circle opened nearby in 2020, adding hotels, offices, and a hospital wing that turned the airport into a broader economic hub for the canton.