Reference data only — not for flight planning or navigation. Verify with official sources (AIP, NOTAMs, ATC). Full disclaimer
Portland Mulino Airport (K4S9) — Portland-Mulino, United States
At a glance
- Runways
- 14/32
- Elevation
- 260 ft
Times in UTC. Reference only: verify with the AIP and NOTAMs.
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60%
Data Complete
31 of 52 points
Missing: Frequencies, Operations, Fuel, Contacts
Section Breakdown
Basic Info
7/7
Runways
4/4
Frequencies
0/4
Operations
0/2
Fuel
0/1
Contacts
0/2
Additional Info
2/10
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 Recently verified Outdated — please verify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: K4S9
- Name: Portland Mulino Airport
- Type: small_airport
- Category: Domestic
- Latitude: 45.216301
- Longitude: -122.589996
- Elevation: 260 ft
- Country: United States
- Municipality: Portland-Mulino
- IATA Code: N/A
- FAA Code: N/A
- FIR: N/A
- Timezone: America/Los_Angeles
- Distance from City: N/A km
- VFR: Yes
- IFR: No
Runways
Runway 14/32
- Designation: 14/32
- Dimensions: 1044x30m
- Surface: ASP
- PCN: N/A
- Lighting: Lighted
- NAVAIDs: N/A
- Approach Types: N/A
- Remarks: N/A
Frequencies
- Tower: N/A
- Ground: N/A
- Operations: N/A
- Traffic/Approach: N/A
- ATIS: N/A
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: Unattended
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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United States Permit Requirements
Fast
Landing: 1d
- Overflight Permit: No
- Landing Permit: Conditional
- Overflight Lead Time: N/A
- Landing Lead Time: 60 minutes minimum (eAPIS manifest before departure); recommend 24-48 hours for CBP port notification
Private / GA Operations:
No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures.
Active NOTAMs
10/096
info
AD AP 100LL FUEL NOT AVBL
2026-10-21 19:59 UTC
2026-11-26 23:59 UTC
10/065
info
OBST TOWER LGT (ASN 2025-ANM-219-OE) 450926N1223100W (4.7NM SE 4S9) 805FT (105FT AGL) U/S
2026-10-16 03:25 UTC
2027-01-28 23:59 UTC
08/090
info
OBST TOWER LGT (ASR 1289063) 452258.50N1223550.60W (10.1NM N 4S9) 198.8FT (107.9FT AGL) U/S
2026-08-12 18:32 UTC
2026-11-10 19:32 UTC
NOTAMs received from the FAA NOTAM feed (last message 2026-10-28 13:30 UTC). This list is built from the feed as NOTAMs are issued and is not checked against the FAA's full list: confirm with FAA NOTAM Search before flight.
View all NOTAMs on Map
Nearby Airports
Airport History
No milestones recorded for Portland Mulino Airport yet. Know when it opened, who built it or a notable event? Add it with a source.
Add a historical factFrequently Asked Questions
- Does K4S9 require landing permits?
- It depends on the flight. No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures. Permit details for United States
- Where is K4S9 located?
- Portland Mulino Airport (K4S9) is located in Portland-Mulino, United States.
- How long is the runway at K4S9?
- The main runway at Portland Mulino Airport (14/32) measures 1044x30m.