Airport information
- FAA LID
- O21
- Coordinates
- 41.0429, -123.6680
- Elevation
- 356 ft MSL
- Magnetic variation
- 17E
- Sectional chart
- KLAMATH FALLS
- Airport use
- Public
- Control tower
- No
- ARTCC
- SEATTLE (ZSE)
- Flight service (FSS)
- OAKLAND
- NOTAM facility
- OAK
- Attendance
- UNATNDD
- Segmented circle
- Yes
- Wind indicator
- yes
- Activated
- 1963/11
- Distance from city
- 1 SE
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:09 AM | 12:09Z |
| Sunrise | 05:42 AM | 12:42Z |
| Sunset | 08:50 PM | 03:50Z |
| Evening civil twilight Loggable night begins | 09:24 PM | 04:24Z |
Plan a flight from O21
Night operations
- Pilot-controlled lighting
- Usually keyed on CTAF 122.9 — confirm the click sequence in the Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 14
- Pattern
- right (turns right)
- TPA
- 1,156 ft MSL · 800 AGL
- CTAF
- 122.9
Enter the right downwind for Rwy 14 at 1,156 ft MSL · 800 AGL on a 45°.
Runway 14/32
2,325 ft × 50 ft · Asphalt (Fair)- Heading
- n/a
- Markings
- basic
- Traffic pattern
- Right
- Approach obstacle
- Trees, 15 ft, 201 ft from threshold, 30 ft L of centerline — 1:1 slope to clear · penetrates the 20:1 visual approach surface
- Displaced threshold
- 80 ft
- Heading
- n/a
- Markings
- basic
- Traffic pattern
- Right
- Approach obstacle
- Trees, 147 ft, 3,000 ft from threshold, 0 ft B of centerline — 19:1 slope to clear · penetrates the 20:1 visual approach surface
- Displaced threshold
- 80 ft
| Runway | Length | Your margin |
|---|---|---|
| 14/32 | 2,325 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| ACV · Arcata | VOR-DME | 110.20 | r062° / 20.3 NM |
| FOT · Fortuna | VORTAC | 114.00 | r030° / 34.1 NM |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
Ownership & management
Remarks FAA
- HAD INFORMAL APPROVAL UNDER TENTATIVE FAAP.
- DAY USE ONLY; CLSD NGTS.
- FOR CD CTC SEATTLE ARTCC AT 253-351-3694.
- WIND INDICATOR OBSCURED BY TREES.
- HOOPA ROADS DEPT.
- RWY 14 HAS 15 FT BRUSH AND TREES 90 FT R.
- RY 14 APCH SLOPE 18:1 TO DSPLCD THLD.
- RY 32 APCH SLOPE 20:1 TO DSPLCD THLD.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open O21 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About O21
Hoopa Airport (O21) is an airport in Hoopa, CA, at 356 ft MSL. It has 1 runway, the longest 2,325 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for O21, refreshed from the Aviation Weather Center and FAA NASR.
Does O21 have a control tower?
No. Hoopa Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at O21?
Hoopa Airport has 1 runway; the longest is 2,325 ft. See the Runways tab for headings, surface, and lighting.
Where is O21?
Hoopa Airport is in Hoopa, CA, at an elevation of 356 ft MSL. Coordinates: 41.0429, -123.6680.
Fly out of O21 often?
Save O21 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.