If you'd like to have some extra spending money on your Cambridge holiday, listen up! As every experienced traveller will tell you, don't book at the very last minute. Airfares are usually highest just prior to the departure date. Don't stop there, though. Do some research and find out if there are a few airports at your destination. Ticket prices often differ depending on the airport you use. Remember to compare fares across air carriers too. Finally, another easy way to save some cash is be ready to book at a moment's notice. If you spot a good bargain, don't think twice --- snap it up while you've got the chance.