Travel times, domestic
Frankfurt: approx. 1 hour
Hamburg: under 4 hours
Berlin: under 4 ¼ hours
Munich: approx. 4 ½ hours

Travel times, international
Amsterdam: approx. 2 ½ hours
Paris: under 4 hours
London: approx. 4 hours
Basel: under 4 hours

Travel times, continental
Cologne/Bonn airport: 30 minutes
Düsseldorf airport: 47 minutes
Frankfurt airport: approx. 1 hour