Airports / KSQI / Whiteside County Airport-Joseph H Bittorf FieldIATA SQIModerate ground coverage
Whiteside County Airport-Joseph H Bittorf Field satellite view
📍 Sterling/Rockfalls⬆ 648 ft2 runways
KSQI · SQI

Whiteside County Airport-Joseph H Bittorf Field

41.74280°N
-89.67630°W
ARR / DAY
3
0.0%
DEP / DAY
3
26.7%

Whiteside County Airport-Joseph H Bittorf Field (KSQI/SQI) is a small general aviation airport located in Sterling/Rockfalls, IL, 47 mi south west of Rockford. It features 2 runways with the longest being 6,499 feet. SkyMeter has observed roughly 3 arrivals and 3 departures per day on average over the last 7 days.

Current weather

Latest METAR observation

9h ago
Temp
81°F
Wind
0 kts
Visib
10+ km
Ceil
METAR KSQI 030256Z AUTO 00000KT 10SM CLR 27/24 A2993 RMK AO2 SLP127 T02720244 53007 PWINO $

Runway intelligence

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

25
52% of ops
62 land · 2 TO
07
25% of ops
30 land · 26 TO
36
16% of ops
19 land · 1 TO
18
8% of ops
9 land · 15 TO
Runway 25 carries 52% of operations (62 landings, 2 takeoffs) over the last 30 days. The next most-used is 07 at 25%.

Approach quality

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

25 62 landings
UA 0%
07 30 landings
UA 0%
36 19 landings
UA 0%
18 9 landings
UA 0%
Approaches to 25 show a 0% unstable-approach rate (0 UA events from 62 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
4.3
flights/day · 128 total
Busy hour (local)
2pm
also 6pm · 7pm
Day vs night
65%
06:00–20:00 local
Traffic concentrates around 2pm–7pm local, averaging 4.3 flights/day. Weekend volume runs 1.1× weekday (4.8 vs 4.3 daily).

Aircraft character

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

Activity is led by (44% of 110 flights). Top three types: , , .

Communications Frequencies

2026-06-11
Type Freq (MHz) Hours
CTAF 123.000
APCH 126.000
APCH 327.000
UNICOM 123.000
AWOS 119.175
CD/P 128.000
OTHER 128.000
Airport operations
ARTCC:
ZAU
Mag var:
2° W
Fuel:
100LL

Hourly traffic

Avg movements per hour · local time · last 30 days

12a 1a 2a 3a 4a 5a 6a 7a 8a 9a 10a 11a 12p 1p 2p 3p 4p 5p 6p 7p 8p 9p 10p 11p
© SkyMeter · All flight data subject to ODbL attribution · Updated 12:46 UTC