Airports / South Korea / OSN
Osan Air Base
RKSO / OSNPyeongtaek, South KoreaELEV 38 FT
Field elevation
Nearest alternate
Field standing
8 nm
To the nearest alternate
Camp Humphreys (A-511) Desiderio Army Airfield (RKSG) — 6 fields within 50 nm.
Overview
Osan Air Base, listed as RKSO / OSN, is a mid-sized airport in Pyeongtaek, South Korea. The airport sits 38 feet above sea level. With no scheduled airline service, it caters to private, charter, and general aviation traffic.
No charter operator is headquartered on the field, but operators routinely position aircraft into OSN for departures. When weather or ramp space demands it, nearby options are Camp Humphreys (A-511) Desiderio Army Airfield (RKSG, 8 nm), Suwon Airport (SWU, 9 nm), and Seoul Air Base (K-16) (SSN, 22 nm).
Charter pricing from OSN depends on aircraft category, positioning distance, and trip timing. Compare rated operators or run a route through the cost estimator to gauge pricing from Pyeongtaek.
Field capability
ICAO
RKSO
IATA
OSN
FAA / Local
RKSO
Elevation
38 ft
Coordinates
37.0915° N · 127.0294° E
Airspace
G · GolfClass G — GolfUncontrolled field — no tower. Pilots self-announce and sequence themselves on the common traffic advisory frequency.Source: FAA NASR class airspace
Size
Medium
Scheduled svc
No
Elevation vs South Korea fields
state range 6–1,171 ft
At 38 ft, OSN sits lower than 70% of the 23 South Korea fields on the register.
Access & alternates
Closest alternate fields by great-circle distance — every listing links to its own field brief.
- 8nmRKSGCamp Humphreys (A-511) Desiderio Army AirfieldPyeongtaek
- 9nmSWUSuwon AirportSuwon
- 22nmSSNSeoul Air Base (K-16)Seongnam
- 30nmGMPSeoul Gimpo International AirportSeoul
- 32nmCJJCheongju International Airport/Cheongju Air Base (K-59/G-513)Cheongju
- 36nmICNIncheon International AirportSeoul
Location
Open the full mapRKSO · Osan Air Base · Pyeongtaek, South Korea