To save money, you need to be flexible. If you have your heart set on a particular destination at a particular time, you’ve given away your flexibility, and you’ll pay more for the privilege to get exactly what you want, when you want it. On the other hand, if you just want to travel somewhere new, you have the advantage. You can go wherever the low fares take you. discount air travel ticket The biggest cost of flying a plane is the fuel that it takes to get it off the ground and keep it there. Flights don’t get cancelled because they’re underbooked, but every empty seat is lost revenue for the airline.