my client has business in Jiangsu - what is the closest international airport? Nanjing Lukou?

Jiangsu is a province with many cities. Nanjing is just one of the cities in Jiangsu and there are still other cities such as Lianyugang and Wuxi. Many of the citie have their own aiport. So which city is your client in? Among all of these airports, the Nanjing Lukou Airport is the most famous and the busiest one, which has the most convenient transportation.