 Dubai International Airport ( IATA : <unk> ) , the hub for Emirates Airlines and <unk> , serves the city of Dubai and other emirates in the country . The airport was the 7th busiest airport in the world by passenger traffic handling 70 @.@ 4 million passengers in 2014 . The airport is also the busiest airport in the world by international passenger traffic . In addition to being an important passenger traffic hub , the airport is the 7th busiest cargo airport in world , handling 2 @.@ 37 million tons of cargo in 2014 Emirates Airline is the national airline of Dubai . As of 2014 , it operated internationally serving 142 destinations in over 70 countries across six continents . 
