Northwest Airlines is offering low airfare this holiday season. Major U.S. destinations are apart of the deal, with many of them during Christmas and New Years week. Here are a few sales I found on their website (Round trip, taxes and fees included):

• Monday December 22 - Friday December 26: Detroit (DTW) - Chicago (MDW), $119
• Thursday December 25 - Thursday January 1: Indianapolis (IND) - New York (LGA), $255
• Wednesday December 24 - Thursday January 1: Fargo (FAR) - San Jose (SJC), $378

You must travel by January 5, 2009 to secure these great prices. For a full listing of all the holiday deals, plus the terms and conditions, check out Northwest Airlines.