Ways to get free airline tickets include getting bumped from a flight, looking for airline promotions and sending a legitimate complaint to the airline. While it costs money to earn airline rewards, travelers can redeem reward points for free or discounted flights.
For many flights, airlines book more passengers than the maximum amount, so the plane is full even if people don't show up. If passengers must give up their seats, they receive compensation from the airline, which varies based on the situation. Those who want to receive free flights can volunteer to get bumped.
Airlines send out promotional information to those on their mailing lists. Some airline-sponsored events may give away gift cards for future flights.
Airlines usually respond to legitimate complaints with some form of compensation. The passenger should send a polite email that explains his issue with the airline's service.