Whiteside County/Jos H Bittorf Field (SQI)

Airport information: Sterling/Rockfalls, IL, United States. Search for another airport below.

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Location and general information

ICAO code: KSQI
FAA identifier: SQI
FAA site number: 05012.1*A
City / state: Sterling/Rockfalls, IL
County: Whiteside
Time zone: America/Chicago
Reference point: 41°44'34.20" N
89°40'34.60" W
Elevation: 647.6 ft (surveyed)
Magnetic variation: 2° W (2020)
Status: Operational
Ownership: Public, Whiteside County
Use: Open to the public
Airport area: 437 acres
From downtown: 2 NM south
Sectional chart: Chicago
Activated: 03/1948

Services and facilities

Control tower: No
Attendance: All months, all days, 0800-1700
Fuel: 100LL, Jet A
Airframe / engine repair: Major / major
Transient storage: Hangar, tie-downs
Other services: Avionics, flight instruction, aircraft rental
ARTCC: Chicago (ZAU)
Flight service: Kankakee (IKK)
1-800-WX-BRIEF
NOTAM facility: SQI
Wind indicator: Lighted
Beacon: White and green, sunset to sunrise
Segmented circle: Yes
Landing fee: No
Customs: No
Airport manager: Darin Heffelfinger
(815) 213-7939
Last FAA inspection: 08/27/2024

FAA remarks

Runway 07 preferred calm wind runway.
Terminal building can be accessed after hours by cipher lock which has applicable instructions.
Oxy service unavailable.
For CD contact Chicago ARTCC at 630-906-8921.

Source: FAA Airport Data and Information Portal (ADIP), effective October 29, 2026. View this airport on the FAA site

Airport facts

ICAO code: KSQI
FAA identifier: SQI
Location: Sterling/Rockfalls, IL, United States
Elevation: 647.6 ft
Time zone: America/Chicago
Coordinates: 41.74283, -89.67628

Runways

Runway	Size	Surface
07 / 25	6,499 × 150 ft	Asphalt, fair, porous friction course
18 / 36	3,900 × 100 ft	Asphalt, good, grooved

Codes, elevation and runways: FAA airport data (NASR), effective 2026-10-29. Reference only, not for navigation.

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