
10. Dallas Fort-Worth International —
Dallas Fort-Worth International welcomed 64 million passengers in 2015 -- a 0.9% increase over the previous year, according to Airport Council International's preliminary 2015 passenger traffic results. The Texas facility dropped from ninth place to 10th.

9. Paris Charles de Gaulle Airport —
Paris' international airport slipped in the rankings as well, moving from eighth to ninth spot. More than 65 million passengers passed through Paris Charles de Gaulle Airport in 2015, an increase of 3.1%.

8. Hong Kong International Airport —
Hong Kong International Airport -- the world's largest air cargo hub -- saw more than 68 million passengers pass through its doors in 2015, an increase of 8.2%.

7. Los Angeles International Airport —
LAX processed more than 74.93 million passengers in 2015 -- a rise of 6.1%. Despite the increase it fell two spots in the rankings, from fifth to seventh.

6. London Heathrow Airport —
With 74.98 million passengers in 2015, London Heathrow dropped three spots to come in as the world's sixth busiest airport. In terms of international passengers, however, Heathrow held onto the second spot.

5. Tokyo Haneda Airport —
More than 75 million passengers passed through Tokyo Haneda in 2015, a rise of 3.4% over 2014.

4. Chicago O'Hare International Airport —
Chicago O'Hare moved up to become the fourth-ranked airport in 2015 from seventh position in 2014, with growth of 9.8%. "After years of congestion, the airport is reaping the benefits of runway expansions and other capacity developments," says the ACI report.

3. Dubai International Airport —
The sixth busiest airport in 2014, Dubai has moved up to third position. With more than 78 million passengers, traffic grew by 10.7% in 2015. It's also the world's busiest in terms of international passengers.

2. Beijing Capital International Airport —
While Beijing was expected to move into first place by 2015, it no longer benefits from the double-digit growth it enjoyed in previous years, says the ACI report. Traffic grew by 4.4%, with 89.9 million passengers passing through last year.

1. Atlanta Hartsfield Jackson International —
Atlanta Hartsfield Jackson International remained the busiest passenger airport in the world in 2015, bringing in more than 100 million passengers.



