Meanwhile, as predicted in the Star Tribune Travel section May 2, airfares to Europe are dipping. Could be because the Iceland volcanic ash is still spewing and some are reluctant to hop the pond. Book today, and you could nab cheap flights to Europe on American or Air France. American's sale includes roundtrips to London and Manchester from major hubs such as Chicago for as little as $512 ( Book by tomorrow on Air France for cheap fares to many European cities, with departure dates all summer long -- from June 1 through August 31. Purchase at least seven days before departure, and fly midweek for the best fares (