Airports / K3O9 / Grand Lake Regional AirportIATA NRIPoor ground coverage

Grand Lake Regional Airport satellite view

📍 Afton⬆ 792 ft1 runways

K3O9 · NRI

Grand Lake Regional Airport

36.57760°N

-94.86190°W

ARR / DAY

▼ 100.0%

DEP / DAY

▼ 100.0%

Grand Lake Regional Airport (K3O9/NRI) is a small general aviation airport located in Afton, OK, 63 mi north east of Broken Arrow. It features 1 runway measuring 3,925 feet.

Safety incidents

Last 7 days · 0 total

NORMAL

Current weather

From KVBT, 39 mi away (K3O9 does not publish METAR)

1h ago

Temp

82°F

Wind

4 kts

180°

Visib

10+ km

Ceil

—

METAR KVBT 270556Z AUTO 18004KT 10SM CLR 28/23 A2999 RMK AO2 SLP138 T02830233 10344 20283 403670250 50005

Runways

1 installed

3,925 FT MAX

17/35

3,925 ft × 60

CON● LIT

Runway intelligence

Which runway carries the operations, observed over the last 30 days

85% of ops

33 land · 0 TO

15% of ops

6 land · 15 TO

Runway 35 carries 85% of operations (33 landings, 0 takeoffs) over the last 30 days. The next most-used is 17 at 15%.

Approach quality

Per-runway unstable-approach, go-around, and long-rollout rates

35 33 landings

UA 0%

17 6 landings

UA 0%

Approaches to 35 show a 0% unstable-approach rate (0 UA events from 33 landings).Phase B will add wind-correlation: which crosswind band produces most UA events.

Traffic behavior

When the field is busy: hourly + weekday vs weekend

Daily avg

0.8

flights/day · 23 total

Busy hour (local)

10pm

also 5pm · 12am

Day vs night

48%

06:00–20:00 local

Traffic concentrates around 12am–10pm local, averaging 0.8 flights/day. Weekend volume runs 2.0× weekday (1.2 vs 0.6 daily).

Aircraft character

What's actually flying here: top types over the last 30 days

3 · 14%

2 · 9%

1 · 5%

Activity is led by (14% of 22 flights). Top three types: , , .

Communications Frequencies

2026-06-11

Type	Freq (MHz)	Hours
CTAF	122.700	—
UNICOM	122.700	—

Airport operations

ARTCC:: ZKC
Elevation:: 792 ft
Mag var:: 5° E

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