1. Guangzhou Baiyun International Airport (Guangzhou, China)

Guangzhou Baiyun International Airport (CAN) claimed the number one spot for busiest airport in the world in 2020 with over 43.7 million passengers. CAN saw 73 million travelers in 2019, so these numbers are still down significantly. How far do you think CAN will drop in the rankings in 2021 with restrictions being lifted around the world?