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Airports / Illinois / KSQI

Whiteside County Airport - Joseph H Bittorf Field KSQI

Whiteside County Airport - Joseph H Bittorf Field (KSQI, SQI) is a non-towered airport in Rock Falls, Illinois, 648 feet above sea level. There are 2 runways; the longest is 07/25, 6,499 feet of asphalt, lighted. Approach and departure service comes from Chicago / Rockford International. The closest other airport on TowerScope is Dixon Municipal Charles R. Walgreen Field (KC73), 12 nautical miles northeast.

Runways

RunwayLengthSurfaceLighted
07/256,499 ftasphaltYes
18/363,900 ftasphaltYes

Frequencies

Chicago / Rockford International tower and approach

  • 126.0 Approach and departure
  • 128.0 Clearance delivery
  • 327.0 Approach and departure

Whiteside County Airport - Joseph H Bittorf Field weather station

  • 119.175 SQI AWOS-3PT

Whiteside County / Jos H Bittorf Fld no tower

  • 123.0 CTAF, UNICOM

From the FAA NASR 28-day data, cycle 2026-10-01. Check the Chart Supplement before use.

Location

41.7422, -89.6736. Field elevation 648 ft. No control tower on file.

Nearby airports

  • KC73 Dixon Municipal Charles R. Walgreen Field 12 NM northeast
  • KRPJ Rochelle Municipal Airport - Koritz Field 28 NM east
  • KCWI Clinton Municipal Airport 30 NM west
  • KFEP Albertus Airport 31 NM north
  • KVYS Illinois Valley Regional Airport Walter A Duncan Field 33 NM southeast
  • KEZI Kewanee Municipal Airport 35 NM south
  • KRFD Chicago Rockford International Airport 37 NM northeast
  • KMLI Quad City International Airport 41 NM southwest