I hear more Chinese travelers are choosing to transit through Incheon Airport rather than Taiwan these days

Since direct flights between Mainland China and Taiwan were fully established in 2008,
there were quite a lot of people transferring through Taiwan Taoyuan International Airport.
To visit Taiwan, Mainland Chinese citizens need a travel permit rather than just a passport,
but a permit wasn't required when transferring.
It was also more convenient since they speak Chinese.
However, these days, Incheon is the trend.
The facilities are excellent, and through Incheon's steady efforts, it has been reborn as a transit hub.
Routes to the US or Canada are particularly popular.
While Taoyuan International Airport flies to 14 cities in China,
Incheon International Airport is currently flying to more than 40 cities in China.