- Jeju – Seoul Gimpo (South Korea), Melbourne – Sydney (Australia) and Sapporo-Tokyo Haneda (Japan) are the top three busiest routes in the world. Over 13.4 million passengers flew between Jeju and Seoul in 2017
- Ten Indian flight routes feature in the list of top 100 busiest routes in the world. Nine of them are domestic. The sole international route from India, which appeared on the top 100 list is Mumbai-Dubai
- Mumbai-Delhi is fifth busiest route in the world. Fourteen domestic routes from China are included in the list. Asia-Pacific region dominates the list with top 10 busiest global routes
- Only two-inter continental routes