Here are a few suggestions for your next trip from Köln

In 2 hours, you can reach Brussels.

In 3 hours, you can reach Amsterdam, Antwerpen.

In 4 hours, you can reach Paris, Luxembourg, Hamburg, Rotterdam.

In 5 hours, you can reach London, Berlin, Esch-sur-Alzette, Munich.

In 6 hours, you can reach Zürich, Lyon.

In 7 hours, you can reach Schaan, Birmingham, Vaduz.

In 8 hours, you can reach Marseille, Genève, Liverpool.

In 9 hours, you can reach Vienna, Prague, Milan, Århus.

In 10+ hours, you can reach Madrid, Rome, Budapest, Warsaw, Stockholm, Copenhagen, Zagreb, Bratislava, Ljubljana, Monaco...