Washington Dulles International Airport is one of the most expensive airports in the nation, according to a travel report on the top 100 airports released Wednesday. With an average price tag of $419.48 including taxes and fees for domestic flights, Dulles — a hub for United Airlines — ranked ninth, well above the national average of $339.71 in the third quarter of 2010, according to the federal Bureau of Transportation Statistics.

Ronald Reagan Washington National Airport ranked 25th, while Baltimore/Washington International Thurgood Marshall, a hub of discount carrier Southwest Airlines, ranked 84th.