The standard going rate for award flights to Europe these days is somewhere between 50,000 to 60,000 miles in coach and 80,000 to 105,000 miles in business class. American Airlines offers a 40,000-mile off-peak coach award to Europe, including dates between Oct. 15 and May 15, but you won’t find any discounted business class seats. US Airways frequently offers a great deal on travel to Europe during slow travel times and from Jan. 15 to Feb. 28, 2010, Dividend Miles members can redeem 35,000 miles for coach or 60,000 miles for business class awards between North America or Hawaii and Europe.