📍 Mount Vernon⬆ 1,191 ft1 runways

K4I3 ·

Knox County Airport

40.32870°N

-82.52380°W

ARR / DAY

▲ 133.3%

DEP / DAY

▲ 135.0%

Knox County Airport (K4I3) is a small general aviation airport located in Mount Vernon, OH, 36 mi north east of Columbus. It features 1 runway measuring 5,504 feet. SkyMeter has observed roughly 5 arrivals and 7 departures per day on average over the last 7 days.

Safety incidents

Last 7 days · 0 total

NORMAL

Current weather

Latest METAR observation

4h ago

Temp

61°F

Wind

4 kts

320°

Visib

10+ km

Ceil

—

METAR K4I3 250135Z AUTO 32004KT 10SM CLR 16/16 A3008 RMK AO2

Runways

1 installed

5,504 FT MAX

10/28

5,504 ft × 100

ASP● LITMED

Runway intelligence

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

60% of ops

79 land · 20 TO

40% of ops

53 land · 45 TO

Runway 10 carries 60% of operations (79 landings, 20 takeoffs) over the last 30 days. The next most-used is 28 at 40%.

Approach quality

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

10 79 landings

UA 3%

28 53 landings

UA 0%

Approaches to 10 show a 3% unstable-approach rate (2 UA events from 79 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

9.0

flights/day · 271 total

Busy hour (local)

3pm

also 5pm · 2pm

Day vs night

68%

06:00–20:00 local

Traffic concentrates around 2pm–3pm local, averaging 9.0 flights/day. Weekend volume runs 0.7× weekday (6.8 vs 10.3 daily).

Aircraft character

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

Activity is led by (31% of 212 flights). Top three types: , , .

Communications Frequencies

2026-06-11

Type	Freq (MHz)	Hours
CTAF	123.050	—
APCH	125.950	—
APCH	317.775	—
UNICOM	123.050	—
AWOS	126.050	—
CD/P	119.450	—
OTHER	119.450	—

Airport operations

ARTCC:: ZID
Mag var:: 6° W
Fuel:: 100LL, A+

Hourly traffic

Avg movements per hour · local time · last 30 days

Custom date range