Upcoming and ongoing deals for cheap Christmas flights are listed on Farecast and Airfare Watchdog. Priceline also allows travelers to bid on cheap Christmas flights at their website.

For those seeking to compare fares for multiple airlines, SideStep, Hotwire and Bing.com offer organized lists of rates.

Travel blogger Rick Seaney offered one tip to booking cheap Christmas flights: fly outside the normal holiday travel period. Flying in on Christmas morning or flying out on New Year's Eve (or New Year's day), for example, can result in lower fees. Or flying a week before Christmas or a few days after New Year's may also be a cheap alternative.

Several of the major airlines, including Delta, Northwest, American, Continental and U.S. Airways are adding an additional $10 each-way surcharge to flights. The fee will be added to flights booked for January 2 or 3.http://blog.timesunion.com/business/airlines-levy-a-holiday-travel-surcharge/15477/

Below are examples of some of the deals airlines were offering during the 2009 Christmas season. This page will feature 2010 Christmas flight deals when they are announced later this year.

Continental Airlines is currently offering discounted business class fares to Europe during the Christmas holidays.http://rickseaney.com/

United Airlines launched it's Season's Greetings sale in early December of 2009. Flights within the U.S. and Puerto Rico must be booked two weeks in advance and taken between December 17, 2009, and January 3, 2010. Some flights were as low as $54 each way.http://www.united.com/page/article/1,,50064,00.html

Microsoft's Bing Travel predicted that holiday flights out of Atlanta's busy Hartsfield International Airport may be less expensive this season.http://www.ajc.com/business/holiday-flights-may-be-128614.html

This page will provide information 2010 Christmas flight deals when they become available. Airlines will often start to provide deals late in the summer and into fall.

• • The Mahalo Guide on How to Successfully Bid on Travel
• Priceline
• Bidding Guide: BiddingForTravel.com
• Bidding Guide: BetterBidding