Mattituck Airport
21N · Mattituck, NY · Non-towered · Print kneeboard
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-04 · night begins 08:34 PM
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:18 AM | 09:18Z |
| Sunrise | 05:49 AM | 09:49Z |
| Sunset | 08:03 PM | 00:03Z |
| Evening civil twilight Loggable night begins | 08:34 PM | 00:34Z |
Plan a flight from 21N
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
RWY 19LEFT traffic
- Heading
- 193° mag · 179° true
- Dimensions
- 2,200 × 60 ft
- TPA
- 1,000 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- CTAF
- 122.9
Enter the left downwind (heading 013°) on the 45° at 1,000 ft MSL (≈1,000 AGL).
More details — RWY 19
- Threshold elev
- 21 ft
- Markings
- basic
- Approach obstacle
- Trees, 51 ft, 360 ft from threshold, 117 ft R of centerline — 3:1 slope to clear · penetrates the 20:1 visual approach surface
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 01/19 | 2,200 ft |
Prefer one flat page? Full runway details for 21N → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 21N kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
HTO 113.60 · FOK 111.00 · CCC 114.55 · +4
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| HTO · Hampton | VORTAC | 113.60 · 83X | High | r307° / 10.1 NM |
| FOK · Suffolk Co | TACAN | 111.00 · 47X | — | r043° / 10.4 NM |
| CCC · Calverton | VOR/DME | 114.55 · 92Y | Low | r088° / 13.2 NM |
| MAD · Madison | VOR/DME | 110.40 · 41X | Low | r171° / 21.1 NM |
| BDR · Bridgeport | VOR/DME | 108.80 · 25X | Low | r123° / 29.3 NM |
| GON · Groton | VOR/DME | 110.85 · 45Y | Terminal | r240° / 29.5 NM |
| DPK · Deer Park | VOR/DME | 117.70 · 124X | Low | r083° / 37.5 NM |
Prefer one flat list? All 21N frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- 21N
- Coordinates
- 40.9876, -72.5190
- Elevation
- 30 ft MSL
- Magnetic variation
- 14W
- Sectional chart
- NEW YORK
- Airport use
- Public
- Control tower
- No
- ARTCC
- NEW YORK (ZNY)
- Flight service (FSS)
- NEW YORK · 1-800-WX-BRIEF
- NOTAM facility
- ISP
- Attendance
- UNATT
- Segmented circle
- Yes
- Wind indicator
- yes
- Activated
- 1947/09
- Distance from city
- 1 SE
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 under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns, hangars
Ownership & management 2 contacts
Remarks FAA · 9 notes
General
- ALL TRNG OPNS; TKOF/LNDG PRACTICE AND NIGHT OPNS ARE PROHIBITED.
- SEGMENTED CIRCLE HAS NO TFC PATTERN INDICATOR.
- DEER ON & INVOF ARPT.
- FOR CD CTC NEW YORK APCH AT 516-683-2449.
- CALL AMGR FOR PMSN TO LND.
Runways
- TWO STORY HOUSE 165 FT FM RWY THR, RIGHT OF CNTRLN.
Obstructions
- +5 FT FENCE & SHRUBS 0-200 FT FM THR ON BOTH SIDES OF RWY; +46 FT TREES 0-200 FT FM THR 75-120 FT R; +10 FT WIDE ROAD 0-20 FT FM BOTH SIDES OF RWY THR.
- +29 FT TREES 73 FT FM THR 38 FT R; +50 FT TREES 0 FT FM THR 64 FT L; +8 FT BERM 29-69 FT FM THR ON BOTH SIDES OF RWY.
- CTLNG OBSTN EXCEEDS 45 DEG SLP.
Nearby airports
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Also nearby: 49NY Westmoreland Airport (private) (8 NM) · 03NY Talmage Field (private) (9 NM) · NY03 Klenawicus Airfield (private) (10 NM) · 3NY8 Calverton Executive Airpark (private) (13 NM)
About 21N
Mattituck Airport (21N) is an airport in Mattituck, NY, at 30 ft MSL. It has 1 runway, the longest 2,200 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 21N, refreshed from the Aviation Weather Center and FAA NASR.
Does 21N have a control tower?
No. Mattituck Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 21N?
Mattituck Airport has 1 runway; the longest is 2,200 ft. See the Runways section for headings, surface, and lighting.
Where is 21N?
Mattituck Airport is in Mattituck, NY, at an elevation of 30 ft MSL. Coordinates: 40.9876, -72.5190.
Fly out of 21N often?
Save 21N 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.
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 21N 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.