World's top 20 international air routes revealed - and they are almost all in Asia
World's top 20 international air routes revealed - and they are almost all in Asia
- Almost all of the world's 20 busiest air routes are in east Asia, with no ... Two cities, Tokyo and Seoul, have two airports each featuring in the top 20.
- Almost all of the world's 20 busiest air routes are in east Asia, with no ... Two cities, Tokyo and Seoul, have two airports each featuring in the top 20.