| - Kirsch Municipal Airport
FAA / IATA Airport Code: IRS
Sturgis, MI
- South Bend, IN - Michiana Regional Airport
FAA / IATA Airport Code: SBN
South Bend, IN
- Kalamazoo-Battle Creek Intl Airport
FAA / IATA Airport Code: AZO
Kalamazoo, MI
- Ross Field Airport
FAA / IATA Airport Code: BEH
Benton Harbor, MI
- Michigan City Airport
FAA / IATA Airport Code: MGC
Michigan City, IN
- Fort Wayne, IN - Baer Field
FAA / IATA Airport Code: FWA
Fort Wayne, IN
- W. K. Kellogg Airport
FAA / IATA Airport Code: BTL
Battle Creek, MI
- Porter County Municipal Airport
FAA / IATA Airport Code: VPZ
Valparaiso, IN
- Grissom Air Force Base
FAA / IATA Airport Code: GUS
Peru, IN
- Kokomo Municipal Airport
FAA / IATA Airport Code: OKK
Kokomo, IN
- Marion Municipal Airport
FAA / IATA Airport Code: MZZ
Marion, IN
- Gary, IN
FAA / IATA Airport Code: GYY
Gary, IN
- Jackson County-Reynolds Field Airport
FAA / IATA Airport Code: JXN
Jackson, MI
- Grand Rapids, MI - Kent County International Airport
FAA / IATA Airport Code: GRR
Grand Rapids, MI
- Meigs Field Airport
FAA / IATA Airport Code: CGX
Chicago, IL
- Muncie, IN - Delaware County Airport
FAA / IATA Airport Code: MIE
Muncie, IN
- Lafayette, IN - Purdue University Airport
FAA / IATA Airport Code: LAF
Lafayette, IN
- Chicago, IL - Midway
FAA / IATA Airport Code: MDW
Chicago, IL
- Kentland Municipal Airport
FAA / IATA Airport Code: KKT
Kentland, IN
- Anderson Municipal-Darlington Field Airport
FAA / IATA Airport Code: AID
Anderson, IN
- Margny
FAA / IATA Airport Code: XCP
Compiegne, IL
- Lima Allen County Airport
FAA / IATA Airport Code: AOH
Lima, OH
- Chicago, IL - Pal-Waukee Airport
FAA / IATA Airport Code: PWK
Chicago, IL
- Toledo, OH - Toledo Express Airport
FAA / IATA Airport Code: TOL
Toledo, OH
- Lansing, MI - Capital City Airport
FAA / IATA Airport Code: LAN
Lansing, MI
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