The Travel Leaders Group ranks airports in Atlanta and Charlotte as the best for connecting flights, based on surveys with member travel agents.
Dallas, Houston and Detroit are also considered good hubs for travelers making a connection.
Chicago's O'Hare ranked as the worst airport for connecting flights.
No Washington-area airports made either list, but Dulles International Airport tied for No. 10 with San Francisco on its list of top U.S. airports for business travel services.
Atlanta led that category.
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