World's busiest airports

Published On: Oct 17 2013 12:29:02 PM CDT   Updated On: Apr 04 2016 11:32:32 AM CDT

The Airports Council International has released its annual world airport traffic rankings. So where is the world's busiest airport? The answer may surprise you.

London's Heathrow Airport
16 / 21
Jim Spellman/CNN

6. London Heathrow Airport (74,989,795 passengers)

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