The eagle-eyed folks over at FareCompare.com have spotted a surcharge surge by U.S. airlines. We noted a few weeks ago that some airlines had added a $10 fee for three dates of travel around the holidays: Nov. 29, Jan. 2 and 3. Now it seems there are an additional 10 days - peak travel times - where passengers will have to pay an extra 10 bucks to fly. Those new dates include the two days after Christmas, dates in March around the typical spring break season and Memorial Day.

What's interesting, too, is that no airline added the surcharge for 13 days. Instead, for example, American added it for 3 days and then US Airways added it for a different 6 days and then American Airlines added 4 more dates. Then they just matched each other's fees and spread the wealth, so to speak. Remember, the $10 surcharge is each way. And holiday airfares are already among the highest the airlines charge, so this just adds the cherry on top. For them.