Anyone who has booked an airline flight recently knows that the price of airfare has increased quite sharply .This is due to the higher prices of fuel and other expenses incurred by the airlines. When I travel to a casino I usually have no problem getting comps for my room and food so the airfare is my major travel expense. One way to get my airfare for free is to volunteer to be bumped when the flight is over booked. If your travel time is flexible and you don't mind spending a few extra hours in the airport you might find that getting bumped is a great way to get your airfare for free. Here is how it works.