Cheongju International Airport offers nonstop service to 21 destinations, served by 9 airlines.
| Destination | Code | Country | Distance | Duration | Airlines |
|---|---|---|---|---|---|
| Jeju | CJU | Republic of Korea | 368 km | 1h 10m | 7C, KE, LJ, OZ, ZE, TW |
| Fukuoka | FUK | Japan | 439 km | 1h 20m | TW |
| Kitakyushu | KKJ | Japan | 453 km | 1h 10m | |
| Hiroshima | HIJ | Japan | 553 km | 1h 20m | |
| Qingdao | TAO | China | 664 km | 2h 20m | |
| Yanji | YNJ | China | 704 km | 2h 35m | ZE, TW |
| Osaka | KIX | Japan | 746 km | 1h 45m | TW |
| Nagoya | NGO | Japan | 866 km | 1h 48m | |
| Omitami | IBR | Japan | 1,158 km | 2h 5m | |
| Tokyo | NRT | Japan | 1,162 km | 2h 20m | |
| Okinawa | OKA | Japan | 1,166 km | 2h 10m | |
| Sapporo | CTS | Japan | 1,387 km | 2h 30m | |
| Taipei | TPE | Taiwan | 1,422 km | 2h 35m | ZE |
| Obihiro | OBO | Japan | 1,500 km | 2h 33m | |
| Dayong | DYG | China | 1,800 km | 3h 33m | 3U, ZE, GJ |
| Ulaanbaatar | UBN | Mongolia | 2,084 km | 3h 38m | TW |
| Angeles | CRK | Philippines | 2,483 km | 3h 45m | |
| Kunming | KMG | China | 2,666 km | 4h 20m | DR |
| Da Nang | DAD | Viet Nam | 2,978 km | 5h 0m | TW |
| Nha Trang | CXR | Viet Nam | 3,292 km | 5h 5m | TW |
| Denpasar | DPS | Indonesia | 5,195 km | 7h 3m | TW |