Grand Isle Airport

OK18 · Big Cabin, OK · 636 ft elevation

Overview Weather Runways Comms & NavAids Charts Services & info

Airport information

FAA LID: OK18
Coordinates: 36.4234, -95.1711
Elevation: 636 ft MSL

Detailed FAA facility data isn't available for this airport.

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-21

Event	Local (CDT)	UTC
Morning civil twilight Loggable night ends	05:32 AM	10:32Z
Sunrise	06:03 AM	11:03Z
Sunset	08:42 PM	01:42Z
Evening civil twilight Loggable night begins	09:12 PM	02:12Z

Loggable night (§1.1)

09:12 PM → 05:32 AM

Night currency (§61.57)

09:42 PM → 05:03 AM

Plan a flight from OK18

Destination (ICAO)

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

Traffic pattern

Landing runway

LEFT traffic

Landing: Rwy 17
Pattern: left (turns left)
TPA: 1,600 ft MSL (≈1,000 AGL)

Enter the left downwind for Rwy 17 at 1,600 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).

Runway 17/35

2,200 ft × 50 ft · TURF

Heading: n/a

Heading: n/a

Headings shown are true (magnetic variation unavailable).

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
17/35	2,200 ft

Nearby navigation aids

NavAid	Type	Freq	Radial / Dist magnetic
TUL · Tulsa	VORTAC	114.40	r057° / 32.8 NM

VFR sectional

Open OK18 on the VFR sectional (SkyVector) ↗

No published instrument procedures or Chart Supplement for OK18. VFR sectional link above.

No published services or facility detail for OK18.

Nearby airports

OK1 · Stearmans Roost Airport (4 NM)OK30 · Grandcraft Landing StripPrivate (7 NM)OK21 · Longs Airport North AirportPrivate (8 NM)1K8 · South Grand Lake Regional Airport (10 NM)OK95 · Disney AirportPrivate (11 NM)H04 · Vinita Municipal Airport (13 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 OK18 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 OK18

Grand Isle Airport (OK18) is an airport in Big Cabin, OK, at 636 ft MSL. It has 1 runway, the longest 2,200 ft. This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for OK18, refreshed from the Aviation Weather Center and FAA NASR.

What is the longest runway at OK18?

Grand Isle Airport has 1 runway; the longest is 2,200 ft. See the Runways tab for headings, surface, and lighting.

Where is OK18?

Grand Isle Airport is in Big Cabin, OK, at an elevation of 636 ft MSL. Coordinates: 36.4234, -95.1711.

Fly out of OK18 often?

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