The best airport in Switzerland for hiking enthusiasts is likely Zurich Airport, given its central location and excellent connectivity to key hiking destinations like the Swiss Alps, Zermatt, and the Bernese Oberland via train and car. Geneva Airport is another good option, especially for those looking to explore the western Swiss Alps or the Jura Mountains. Both airports offer extensive car rental services and are well-connected to the Swiss public transportation network, making it convenient for travelers to reach their hiking destinations.