1.5 billion more passengers flew last year than in 2022. These are the 10 busiest airports in the world.

• New data on the world's busiest airports in 2023 reveals the latest trends in global travel. 
• 8.5 billion passengers traveled by plane last year, almost marking a return to pre-pandemic levels.   
• Airports in Asia and the Middle East became busier, but the US has once again clinched the top spot. 

International travel is almost back to pre-pandemic levels, according to the just-released list of the world's busiest airports in 2023.