If you are backpacking around the globe or are looking for a spare of the moment get-away, booking your flights a couple of days before you want to take off could save you money. There are many companies that compare flight prices with many different airlines, all you have to do is enter your destination, your departure location and the dates you want to fly, and they will show you all the flight prices and the cheapest fares available.
The prices shown do not include any added extras, so if you need to add check-in luggage, or add a meal or seat selection you may have to pay a little bit extra.
The great thing for backpackers is that by not booking flights in advance, you gain flexibility with your travels. You may find you like a particular place more than you expected and wish to stay their longer, by not having a flight date to leave by you open yourself up to more spare of the moment adventures.