As droves of holiday shoppers head to stores for refunds, many fliers are unaware they can get one when their non-refundable airline ticket drops in price.

Most airlines provide a refund if it is requested before a flier's scheduled flight. Depending on an airline's policy, the request can be made on the phone or at the carrier's website.

http://www.usatoday.com/travel/flights/2008-12-25-airline-ticket-refund_N.htm