Gimpo offers nonstop service to 30 destinations, served by 19 airlines.
| Destination | Code | Country | Distance | Duration | Airlines |
|---|---|---|---|---|---|
| Gwangju | KWJ | Republic of Korea | 268 km | 1h 0m | OZ |
| Pohang | KPO | Republic of Korea | 292 km | 1h 0m | LJ |
| Jinju | HIN | Republic of Korea | 296 km | 1h 5m | LJ |
| Yeosu | RSU | Republic of Korea | 310 km | 1h 0m | LJ, OZ |
| Ulsan | USN | Republic of Korea | 315 km | 1h 0m | KE, LJ |
| Busan | PUS | Republic of Korea | 326 km | 1h 5m | 7C, BX, KE, LJ, TW, ZE |
| Jeju | CJU | Republic of Korea | 450 km | 1h 15m | 7C, BX, KE, LJ, OZ, RS, TW, WE, ZE |
| Osaka | KIX | Japan | 835 km | 1h 45m | 7C, KE, MM, OZ |
| Shanghai | SHA | China | 866 km | 2h 5m | FM, KE, MU, OZ |
| Beijing | PEK | China | 929 km | 2h 18m | CA, KE, OZ |
| Beijing | PKX | China | 931 km | 2h 5m | CZ |
| Nagoya | NGO | Japan | 947 km | 1h 50m | MM |
| Tokyo | HND | Japan | 1,181 km | 2h 10m | JL, KE, NH, OZ |
| Taipei | TSA | Taiwan | 1,472 km | 2h 40m | BR, CI, TW, ZE |
| Kaohsiung | KHH | Taiwan | 1,772 km | 3h 8m | 7C, CI, IT, TW |