| Onchon Airport | |
| Iata: | N/A |
| Icao: | N/A |
| Faa: | N/A |
| Type: | Military |
| City-Served: | Onchon, North Korea |
| Elevation-F: | 23 |
| Elevation-M: | 7 |
| Coordinates: | 38.9095°N 125.2322°W |
| Pushpin Map: | North Korea # Asia # North Pacific # Earth |
| Pushpin Mark: | Roundel of North Korea.svg |
| Pushpin Marksize: | 15 |
| Pushpin Relief: | y |
| Pushpin Label: | Onchon |
| R1-Number: | 01/19 |
| R1-Length-F: | 8,150 |
| R1-Length-M: | 2,484 |
| R1-Surface: | Concrete |
Onchon Air Base (온천비행장) is an air base near Onchon, Pyongan-namdo, North Korea.
The airfield has a single concrete runway 01/19 measuring 8150 x 170 feet (2484 x 52 m). It has a full-length parallel taxiway and several aprons and hangars. It is on the west coast of North Korea and approximately 47km (29miles) west of Pyongyang.[1]
Approximately 5km (03miles) to the southeast of the air base is an underground aviation complex with runways extending outwards from the tunnel systems.[2]