America's busiest airports in Atlanta, Chicago and Dallas rank among worst in US, review finds

The Atlanta Hartsfield, Dallas/Forth Worth, Denver and Chicago O'Hare airports ranked among the worst in the U.S., according to airport reviewer Skytrax, and received average ratings for staff service and product facilities. 

While Skytrax, a review and rating website based in the U.K., declined to give any U.S. airports one or two-star ratings, several received just three stars. According to their website, three stars are given to airports "where staff service standards or the product facilities are fair or average."

Atlanta's Hartsfield-Jackson International Airport received three stars because of "inefficient and insufficient immigration and security staffing levels," the review website said. However, they write that the airport has an "excellent range" of food options, and helpful "information staff."