Here are a few suggestions for your next trip from Klotten

In 2 hours, you can reach Köln.

In 3 hours, you can reach Luxembourg, Esch-sur-Alzette, Dudelange, Schifflange, Frankfurt am Main, Bettembourg, Pétange, Düsseldorf, Merl, Strassen...

In 4 hours, you can reach Brussels, Liège, Stuttgart, Anderlecht, Schaerbeek, Strasbourg, Diekirch, Ettelbruck, Leuven, Nijmegen...