Airports / South Korea / OSN
Osan Air Base.
Pyeongtaek, South Korea · 38 ft elevation. A private-aviation gateway on the Bravo register.
4.5/5
Google rating
94 ratings
0
Operators based
38
Elevation ft
Google rating
Google reviews
Field elevation
Nearest alternate
Field standing
#2 / 21
South Korea airports by Google rating
4.5★ across 94 Google ratings , ranked against 21 rated South Korea fields.
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). With 2 runways, the longest 9,004-foot paved runway, OSN can typically accommodate aircraft as large as VIP airliners.
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.
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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.
Runways & aircraft access
2 runways
longest 9,004 ft
- 09L/27R9,004 ft × 150 ftConcreteLighted
- 09R/27L9,004 ft × 150 ftConcreteLighted
Which aircraft can operate here
vs longest paved runway 9,004 ft
OSN's 9,004 ft paved runway typically supports charter aircraft up to VIP airliners.
- Turboprop3,000 ft
- Light Jet3,500 ft
- Midsize Jet4,500 ft
- Super-Midsize Jet5,000 ft
- Heavy Jet5,500 ft
- VIP Airliner6,000 ft
Class minimums are sea-level planning rules of thumb. A specific aircraft's balanced-field length varies with weight, temperature, and field elevation. Confirm performance with the operator.
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
Flight times from here
Approximate nonstop block times from OSN on a typical midsize charter jet. Faster classes trim these; add positioning and taxi for the real schedule.
| Destination | Distance | Block time |
|---|---|---|
| Anchorage (ANC) | 3,295 nm | 8h 4m |
| Honolulu (HNL) | 3,947 nm | 9h 35m |
| Seattle (SEA) | 4,520 nm | 10h 55m |
| San Francisco (SFO) | 4,900 nm | 11h 48m |
| Jackson Hole (JAC) | 5,032 nm | 12h 6m |
| Salt Lake City (SLC) | 5,118 nm | 12h 18m |
| Los Angeles (VNY) | 5,177 nm | 12h 26m |
| Las Vegas (LAS) | 5,217 nm | 12h 32m |
Common questions
- What size private jets can use OSN?
- Osan Air Base's longest paved runway is 9,004 ft, which typically supports charter aircraft up to VIP airliners. Lighter classes (turboprops, light and midsize jets) operate comfortably; confirm exact performance for a specific tail with the operator, since balanced-field length shifts with weight, temperature, and elevation.
- What is the longest runway at OSN?
- Osan Air Base has 2 runways; the longest measures 9,004 ft on a paved surface and is lit for night operations.
- What is the nearest major airport to OSN?
- The closest alternate is Camp Humphreys (A-511) Desiderio Army Airfield (RKSG), about 8 nm away, followed by Suwon Airport (SWU) at 9 nm. Operators often position aircraft between these fields depending on ramp space and availability.
- How long is a flight from OSN to major cities?
- Typical block times on a midsize jet: Anchorage about 8h 4m (3,295 nm), Honolulu about 9h 35m (3,947 nm), Seattle about 10h 55m (4,520 nm). Faster classes trim these times; add positioning and taxi for the real schedule.