Reference data only — not for flight planning or navigation. Verify with official sources (AIP, NOTAMs, ATC). Full disclaimer
Osan Air Base (RKSO/OSN) — Korea, Republic of
At a glance
- Tower
- 122.1
- Runways
- 09L/27R, 09R/27L
- Elevation
- 38 ft
Times in UTC. Reference only: verify with the AIP and NOTAMs.
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67%
Data Complete
35 of 52 points
Missing: Operations, Fuel, Contacts
Section Breakdown
Basic Info
7/7
Runways
4/4
Frequencies
3/4
Operations
0/2
Fuel
0/1
Contacts
0/2
Additional Info
2/10
Observed Activity
· Oct 26
21 aircraft observed within 6 NM · busiest hour 00:00Z
2026-10-132026-10-26
Distinct ADS-B aircraft seen within 6 NM below 10,000 ft AGL per UTC day · community-feed coverage varies · not official movement totals
Data last updated:
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See a next to a field? Click it to confirm the info is still correct. Recently verified Outdated — please verify
Basic Airport Information
- ICAO: RKSO
- Name: Osan Air Base
- Type: medium_airport
- Category: Military
- Latitude: 37.090599
- Longitude: 127.029999
- Elevation: 38 ft
- Country: Korea, Republic of
- Municipality: N/A
- IATA Code: OSN
- FAA Code: N/A
- FIR: N/A
- Timezone: Asia/Seoul
- Distance from City: N/A km
- VFR: Yes
- IFR: No
Runways
Runway 09L/27R
- Designation: 09L/27R
- Dimensions: 2744x46m
- Surface: CON
- PCN: N/A
- Lighting: Lighted
- NAVAIDs: N/A
- Approach Types: N/A
- Remarks: N/A
Runway 09R/27L
- Designation: 09R/27L
- Dimensions: 2744x46m
- Surface: CON
- PCN: N/A
- Lighting: Lighted
- NAVAIDs: N/A
- Approach Types: N/A
- Remarks: N/A
Frequencies
- Tower: 122.100 MHz
- Ground: 132.450 MHz
- Operations: N/A
- Traffic/Approach: 127.900 MHz
- ATIS: 132.125 MHz
Operation Hours
Monday
N/A
Tuesday
N/A
Wednesday
N/A
Thursday
N/A
Friday
N/A
Saturday
N/A
Sunday
N/A
- Extra Hours On Request: Not recorded
- Remarks: N/A
Contacts
- AIS Tel: N/A
- ARO Tel: N/A
- MET Tel: N/A
- Admin Tel: N/A
- Health Tel: N/A
- Police Tel: N/A
- Authorities Tel: N/A
- Website: N/A
- Remarks: N/A
Slots / PPR
- Slot Required: Not recorded
- PPR Required: Not recorded
- PPR Contact: N/A
- Remarks: N/A
Immigration
- Port of Entry: Not recorded
- APIS Required: Not recorded
- GAR Required: Not recorded
- Remarks: N/A
Airport Services
No services listed for this airport yet.
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Korea, Republic of Permit Requirements
Medium
Landing: 5d
- Overflight Permit: Yes
- Landing Permit: Yes
- Overflight Lead Time: 2 days before intended overflight
- Landing Lead Time: 2 business days (official); submit as early as possible
Private / GA Operations:
Private flights require advance notification. Good GA infrastructure at GMP and smaller airports.
Active NOTAMs
M1655/
caution
Taxiway lighting closed
TWY F CLOSED DUE TO PARKED ARICRAFT
2026-10-25 10:30 UTC
2026-10-29 00:01 UTC
M1654/
caution
Taxiway lighting closed
TWY G CLOSED DUE TO PARKED ARICRAFT
2026-10-25 10:29 UTC
2026-10-29 00:01 UTC
M1654/26
caution
Taxiway lighting closed
TWY G CLOSED DUE TO PARKED ARICRAFT
2026-10-25 10:29 UTC
2026-10-29 00:01 UTC
+111 more active NOTAMs
Relayed by the FAA NOTAM feed. Coverage outside the US can be incomplete: confirm with the national AIS before flight.
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Nearby Airports
Airport History
No milestones recorded for Osan Air Base yet. Know when it opened, who built it or a notable event? Add it with a source.
Add a historical factFrequently Asked Questions
- What is the tower frequency at RKSO?
- The tower frequency at Osan Air Base is 122.1 MHz.
- Does RKSO require landing permits?
- Yes, landing permits are required for Osan Air Base (Korea, Republic of). Permit details for Korea, Republic of
- Where is RKSO located?
- Osan Air Base (RKSO) is located in Korea, Republic of.
- What is the IATA code for RKSO?
- The IATA code for Osan Air Base is OSN.
- How long is the runway at RKSO?
- The main runway at Osan Air Base (09L/27R) measures 2744x46m.