| - Rock County Airport
FAA / IATA Airport Code: JVL
Janesville, WI
- Albertus Airport
FAA / IATA Airport Code: FEP
Freeport, IL
- Val Galder Bus Terminal
FAA / IATA Airport Code: ZRK
Rockford, IL
- Rockford, IL
FAA / IATA Airport Code: ZRF
Rockford, IL
- Rockford, IL - Greater Rockford
FAA / IATA Airport Code: RFD
Rockford, IL
- Madison, WI - Dane County Regional Airport
FAA / IATA Airport Code: MSN
Madison, WI
- Lake Geneva Aire Estates Airport
FAA / IATA Airport Code: XES
Lake Geneva, WI
- Whiteside County-Joseph H. Bittorf Field
FAA / IATA Airport Code: SQI
Sterling-Rock Falls, IL
- Crites Field-Waukesha County Airport
FAA / IATA Airport Code: UES
Waukesha, WI
- Dubuque Municipal Airport
FAA / IATA Airport Code: DBQ
Dubuque, IA
- Clinton Municipal Airport
FAA / IATA Airport Code: CWI
Clinton, IA
- Kenosha Regional Airport
FAA / IATA Airport Code: ENW
Kenosha, WI
- Aurora Municipal Airport -- also ARR
FAA / IATA Airport Code: AUZ
Chicago-Aurora, IL
- Schaumburg Marriott Heliport
FAA / IATA Airport Code: JMH
Chicago-Schaumburg, IL
- Milwaukee, WI - General Mitchell Field
FAA / IATA Airport Code: MKE
Milwaukee, WI
- Lawrence J. Timmerman Airport
FAA / IATA Airport Code: MWC
Milwaukee, WI
- Dupage Airport
FAA / IATA Airport Code: DPA
Chicago (West Chicago), IL
- Chicago, IL - O'hare International Airport
FAA / IATA Airport Code: ORD
Chicago, IL
- Illinois Valley Regional-Walter A Duncan Field Airport
FAA / IATA Airport Code: VYS
Peru, IL
- Fond du Lac County Airport
FAA / IATA Airport Code: FLD
Fond du Lac, WI
- Chicago, IL - Pal-Waukee Airport
FAA / IATA Airport Code: PWK
Chicago, IL
- Davenport Municipal Airport
FAA / IATA Airport Code: DVN
Davenport, IA
- Margny
FAA / IATA Airport Code: XCP
Compiegne, IL
- Moline, IL - Quad City Airport
FAA / IATA Airport Code: MLI
Moline, IL
- Chicago, IL - Midway
FAA / IATA Airport Code: MDW
Chicago, IL
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