Los Angeles International (LAX), United States
In 2013 LAX handled over 600,000 aircraft operations which involved over 66 million passengers. With these massive numbers, you won’t be surprised to hear that it’s the sixth-busiest airport in the world.
It’s also one of the worst. Commuters generally don’t like this place at all – it’s described as messy and chaotic, and there’s a lack of shops, restaurants, and seating. In other words, just terrible in most regards.