Lopez Island Airport

S31 · LPS · Lopez, WA · 209 ft elevation · var 21E · Non-towered

Overview Weather Runways Comms & NavAids Charts Services & info

Airport information

FAA LID: S31 / LPS
Coordinates: 48.4839, -122.9380
Elevation: 209 ft MSL
Magnetic variation: 21E
Sectional chart: SEATTLE
Airport use: Public
Control tower: No
Weather station: AWOS-3P · 118.525 · ☎ 360-376-2071
ARTCC: SEATTLE (ZSE)
Flight service (FSS): SEATTLE · 1-800-WX-BRIEF
NOTAM facility: SEA
Attendance: UNATNDD
Beacon: white-green (SS-SR)
Segmented circle: Yes
Wind indicator: lighted
Landing fee: Yes
Activated: 1963/06
Distance from city: 3 N

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-22

Event	Local (PDT)	UTC
Morning civil twilight Loggable night ends	04:28 AM	11:28Z
Sunrise	05:10 AM	12:10Z
Sunset	09:17 PM	04:17Z
Evening civil twilight Loggable night begins	09:59 PM	04:59Z

Loggable night (§1.1)

09:59 PM → 04:28 AM

Night currency (§61.57)

10:17 PM → 04:10 AM

Plan a flight from S31

Destination (ICAO)

TAS (kt)Burn (gph)Reserve (hr)Wind from (°)Wind (kt)

Night operations

Rotating beacon: white-green · SS-SR
Pilot-controlled lighting: Usually keyed on CTAF 128.25 — confirm the click sequence in the Chart Supplement ↗

Runway lighting aids — 16: 2-light PAPI (left) · 34: 2-light PAPI (left).

FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.

Traffic pattern

Landing runway

RIGHT traffic

Landing: Rwy 16
Pattern: right (turns right)
TPA: 1,200 ft MSL (≈1,000 AGL)
CTAF: 128.25

Enter the right downwind for Rwy 16 at 1,200 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).

Runway 16/34

2,905 ft × 61 ft · Asphalt (Good)

Edge lights: Med. Surface: Grooved. Weight bearing: Single wheel 12.5k.

Heading: n/a
Threshold elev: 209 ft
Markings: basic
VGSI: 2-light PAPI (left) (4°)
Traffic pattern: Right
Approach obstacle: Trees, 87 ft, 1,948 ft from threshold, 0 ft B of centerline — 20:1 slope to clear
Threshold crossing height: 43 ft
TDZ elevation: 209 ft
End lights: REIL

Heading: n/a
Threshold elev: 163 ft
Markings: basic
VGSI: 2-light PAPI (left) (4°)
Traffic pattern: Left
Approach obstacle: Trees, 60 ft, 900 ft from threshold, 0 ft B of centerline — 11:1 slope to clear · penetrates the 20:1 visual approach surface
Threshold crossing height: 33 ft
TDZ elevation: 209 ft
End lights: REIL

Will it fit? Your aircraft's required runway length (from the POH) — checked against every runway here

ft · ≥1.5× comfortable, under 1.25× tight · saved across airports

Runway	Length	Your margin
16/34	2,905 ft

Communication frequencies

Tower & ground

ASOS/AWOS	118.525
CTAF	128.25

Source: FAA NASR (current 28-day cycle).

Nearby navigation aids

NavAid	Type	Freq	Radial / Dist magnetic
NUW · Whidbey Island	TACAN	113.80	r284° / 13.5 NM
CVV · Penn Cove	VOR-DME	117.20	r310° / 16.7 NM
HUH · Whatcom	VORTAC	113.00	r187° / 31.1 NM

Chart Supplement FAA A/FD

Open PDF ↗

Preview Chart Supplement

VFR sectional

Open S31 on the VFR sectional (SkyVector) ↗

Services

Bottled oxygen: NONE
Bulk oxygen: NONE
Airframe service: NONE
Powerplant service: NONE
Parking: tiedowns
Other services: Air freight, Charter

Ownership & management

Owner

PORT OF LOPEZ

PO BOX 907, LOPEZ, WA

360-468-4116

Manager

WIL CATLIN

PO BOX 907, LOPEZ, WA

360-468-4116

Remarks FAA

ESTABD PRIOR TO 1959.
RY 16/34 SOFT SHOULDERS & THLDS.
FOR CD CTC WHIDBEY APCH AT 360-257-3310.
TWY MARKED WITH REFLECTORS.

Nearby airports

61WA · Burden Field-(Rabbit Run) Airport (3 NM)4WA4 · Windsock AirportPrivate (4 NM)KFHR · Friday Harbor Airport (4 NM)78WA · Center Island AirportPrivate (4 NM)WN07 · Decatur Shores AirportPrivate (5 NM)1WA9 · Friday West Airport (5 NM)

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 S31 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 S31

Lopez Island Airport (S31 · LPS) is an airport in Lopez, WA, at 209 ft MSL. It has 1 runway, the longest 2,905 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for S31, refreshed from the Aviation Weather Center and FAA NASR.

Does S31 have a control tower?

No. Lopez Island Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.

What is the longest runway at S31?

Lopez Island Airport has 1 runway; the longest is 2,905 ft. See the Runways tab for headings, surface, and lighting.

Where is S31?

Lopez Island Airport is in Lopez, WA, at an elevation of 209 ft MSL. Coordinates: 48.4839, -122.9380.

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