Cheongju International Airport (CJJ) is not merely the air gateway to the city of the same name, but a strategically important transport hub for the entire central region of the Republic of Korea. Originally established as a military airbase, today it successfully combines civil and military functions, also serving the major cities of Daejeon and the new administrative capital, Sejong. Thanks to its 24-hour operation and location away from densely populated areas, the airport has become a key base for many airlines and a convenient alternative to the capital's airports.
| IATA Code | CJJ |
| ICAO Code | RKTU |
| City | Cheongju |
| Distance to centre | approx. 11 km |
| Status | International, joint civil-military use |
| Annual Passengers | approx. 3.7 million (2023) |
| Popular Airlines | Aero K, Korean Air, Jeju Air |
| Schedule | "Cheongju Airport" online board |
One of the main features of Cheongju Airport is its role as an important hub for low-cost carriers; in particular, it serves as the main base for the airline Aero K. This ensures passengers have access to a wide network of budget routes both domestically and abroad, including Japan, Taiwan, and Vietnam. The airport is constantly developing: passenger traffic has grown significantly in recent years, leading to the expansion of commercial zones and infrastructure improvements for traveller comfort. Convenient transport links, including bus routes and proximity to a railway station, make it an attractive starting point for a journey through the central part of Korea.