Summer travelers beware: Washington Dulles International Airport is the most expensive airport to fly from. According to a new study from FinanceBuzz, which involved analyzing U.S. Department of Transportation data from the 45 busiest airports, the average ticket from Dulles, otherwise known as IAD, is $427.37. Rounding out the top five most expensive airports in the country are Charlotte/Douglas International Airport (CLT) $425.77; Bush Intercontinental Airport (IAH) $413.66; Newark Liberty… (www.msn.com) 更多...