If you want to save some cash on your Kassel holiday, listen up! As every experienced traveller knows, don't book at the very last minute. Airfares are often highest close to the departure date. Don't stop there, though. Do some research and find out if there are a couple of airports at your destination. Prices often differ depending on the airport you pick. Remember to compare prices across airlines as well. And finally, remember that it's first in, best dressed. Familiarise yourself with airfare costs and be ready to secure your ticket as soon as you see an unbeatable bargain. The sweetest deals never last long.