Osan Air Base — Pyeongtaek, South Korea
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Distance & flight time from OSN
Osan Air Base
Osan Air Base (OSN) near Pyeongtaek, South Korea, is a major joint military installation operated primarily by the United States Air Force's 51st Fighter Wing alongside the Republic of Korea Air Force, and it is not a civilian airport. Located roughly 65 kilometers south of Seoul, Osan serves as a critical forward operating base within the U.S.-ROK alliance, hosting fighter squadrons, intelligence and reconnaissance units, and serving as a key node for regional deterrence given its proximity to North Korea. The base includes extensive hardened infrastructure reflecting its front-line strategic role. Access to OSN is restricted to military personnel, dependents, and authorized visitors, with no scheduled commercial passenger service available to the public.
Runways at Osan Air Base (OSN)
| Runway | Length | Width | Surface |
|---|---|---|---|
| 09L/27R | 9004 ft (2744 m) | 150 ft (46 m) | CON |
| 09R/27L | 9004 ft (2744 m) | 150 ft (46 m) | CON |
Radio frequencies for Osan Air Base (OSN)
| Type | Description | Frequency |
|---|---|---|
| APP | APP | 127.9 MHz |
| ATIS | ATIS | 132.125 MHz |
| CLD | CLNC DEL | 127.3 MHz |
| DEP | DEP | 127.9 MHz |
| GND | GND | 132.45 MHz |
| PMSV | PMSV METRO | 34.65 MHz |
| PTD | PTD | 120.7 MHz |
| TWR | TWR | 122.1 MHz |
Airports near Osan Air Base (OSN)
- Suwon Airport (SWU) — 16.6 km (10.3 mi)
- Seoul Air Base (K-16) (SSN) — 40.0 km (24.9 mi)
- Seoul Gimpo International Airport (GMP) — 56.0 km (34.8 mi)
- Cheongju International Airport/Cheongju Air Base (K-59/G-513) (CJJ) — 59.2 km (36.8 mi)
- Incheon International Airport (ICN) — 66.2 km (41.1 mi)
- Jungwon Air Base/Chungju Airport (JWO) — 76.3 km (47.4 mi)
- Wonju Airport / Hoengseong Air Base (K-38/K-46) (WJU) — 90.9 km (56.5 mi)
- Yecheon Airbase (YEC) — 128.2 km (79.7 mi)
OSN is Osan Air Base, a U.S. Air Force and ROK military installation near Seoul, not a commercial airport. Searchers should know it has no public passenger flights and restricted base access.
FAQ
What is the IATA code for Osan Air Base?
The IATA code for Osan Air Base is OSN.
What is the ICAO code for Osan Air Base?
The ICAO code for Osan Air Base is RKSO. IATA codes are 3 letters used for baggage tags and booking; ICAO codes are 4 letters used by air traffic control and pilots.