Free seats can cost more than you paid for

In a competitive air travel market, pretty much everyone searches for the best airfare you can possibly secure. But cheap fares do have their limit.

Whether by accident or intention, a potential American Airlines passenger made it all the way on to a flight without a paid ticket. Now it is important to note that said "passenger" did have a print out of a flight itinerary, but had not paid for the seat. Thus instead of a free seat, a trespassing charge resulted. MSN Money has all the details of how not to fly for free...