ORDILWEST CHICAGO1

West Chicago

SPI0

Springfield

ORDILROMEOVILLE1

Romeoville

RFD0

Rockford

UIN0

Quincy

PIA0

Peoria

ORDIL - O'HARE1

O'Hare Intl Airport

MDHILMT. VERNON1

Mt. Vernon

MLI0

Moline

ORDIL - MEIGS FIELD1

Meigs Field

BMIILMARSEILLES1

Marseilles

PAHILMARION1

Marion

ORDIL - LAKEFRONT1

Lakefront Park

STLILEAST ST. LOUIS1

East St. Louis

DEC0

Decatur

ORDIL - MIDWAY1

Chicago Midway Airport

ORD0

Chicago

CMI0

Champaign

MDH0

Carbondale

BMI0

Bloomington

STLILBELLEVILLE1

Belleville

ORDILAURORA1

Aurora

STLILALTON1

Alton