| Airport Code | Airport | City |
|---|
| C00 | Mercer county | Aledo |
| ALN | St louis rgnl | Alton/st louis |
| 7A4 | Foster field | Apple river |
| K06 | Greater beardstown | Beardstown |
| Private Jet Charter St. Louis - BLV | Scott afb/midamerica | Belleville |
| H96 | Benton muni | Benton |
| BMI | Central il regl arpt at bloomington-normal | Bloomington/normal |
| 1C5 | Bolingbrook's clow intl | Bolingbrook |
| Private Jet Charter St. Louis - CPS | St louis downtown | Cahokia/st louis |
| CIR | Cairo rgnl | Cairo |
| CTK | Ingersoll | Canton |
| MDH | Southern illinois | Carbondale/murphysboro |
| CUL | Carmi muni | Carmi |
| 1H8 | Casey muni | Casey |
| ENL | Centralia muni | Centralia |
| CMI | University of illinois-willard | Champaign/urbana |
| Private Jet Charter Chicago - MDW | Chicago midway intl | Chicago |
| Private Jet Charter Chicago - ORD | Chicago o'hare intl | Chicago |
| Private Jet Charter Chicago - IGQ | Lansing muni | Chicago |
| ARR | Aurora muni | Chicago/aurora |
| 3CK | Lake in the hills | Chicago/lake in the hills |
| PWK | Chicago executive | Chicago/prospect heights/wheeling |
| RFD | Chicago/rockford intl | Chicago/rockford |
| LOT | Lewis university | Chicago/romeoville |
| 06C | Schaumburg rgnl | Chicago/schaumburg |
| UGN | Waukegan rgnl | Chicago/waukegan |
| DPA | Dupage | Chicago/west chicago |
| H49 | Sackman field | Columbia |
| C82 | Bresson | Compton |
| DNV | Vermilion county | Danville |
| DKB | De kalb taylor muni | De kalb |
| DEC | Decatur | Decatur |
| C73 | Dixon muni-charles r. walgreen field | Dixon |
| DTG | Dwight | Dwight |
| C94 | Earlville | Earlville |
| 1H2 | Effingham county memorial | Effingham |
| FWC | Fairfield muni | Fairfield |
| FOA | Flora muni | Flora |
| FEP | Albertus | Freeport |
| C86 | Freeport/dornink | Freeport |
| GBG | Galesburg muni | Galesburg |
| 3G8 | Gen-airpark | Geneseo |
| C81 | Campbell | Grayslake |
| GRE | Greenville | Greenville |
| 10C | Galt field | Greenwood/wonder lake |
| HSB | Harrisburg-raleigh | Harrisburg |
| 0C0 | Dacy | Harvard |
| 9I0 | Havana rgnl | Havana |
| H07 | Highland-winet | Highland |
| 3K4 | Hillsboro muni | Hillsboro |
| 0C2 | Hinckley | Hinckley |
| IJX | Jacksonville muni | Jacksonville |
| JOT | Joliet rgnl | Joliet |
| IKK | Greater kankakee | Kankakee |
| 3KK | Kankakee | Kankakee |
| EZI | Kewanee muni | Kewanee |
| C75 | Marshall county | Lacon |
| LWV | Lawrenceville-vincennes intl | Lawrenceville |
| AAA | Logan county | Lincoln |
| 3LF | Litchfield muni | Litchfield |
| 2V3 | Hartenbower hectares | Lostant |
| MQB | Macomb muni | Macomb |
| C45 | Manito mitchell | Manito |
| MWA | Williamson county rgnl | Marion |
| MTO | Coles county memorial | Mattoon/charleston |
| 0C7 | Grandpas' farm mendota | Mendota |
| M30 | Metropolis muni | Metropolis |
| MLI | Quad city intl | Moline |
| C56 | Bult field | Monee |
| C66 | Monmouth muni | Monmouth |
| 2K0 | Piatt county | Monticello |
| C09 | Morris muni - james r. washburn field | Morris |
| AJG | Mount carmel muni | Mount carmel |
| C55 | Ogle county | Mount morris |
| I63 | Mount sterling muni | Mount sterling |
| MVN | Mount vernon | Mount vernon |
| 0C8 | Cushing field ltd | Newark |
| OLY | Olney-noble | Olney-noble |
| 8N2 | Skydive chicago | Ottawa |
| 5K1 | Zelmer memorial airpark inc | Palmyra |
| PRG | Edgar county | Paris |
| 1C1 | Paxton | Paxton |
| C15 | Pekin muni | Pekin |
| PIA | Greater peoria rgnl | Peoria |
| 3MY | Mount hawley auxiliary | Peoria |
| VYS | Illinois valley rgnl-walter a duncan field | Peru |
| PJY | Pinckneyville-du quoin | Pinckneyville |
| PPQ | Pittsfield penstone muni | Pittsfield |
| PNT | Pontiac muni | Pontiac |
| C77 | Poplar grove | Poplar grove |
| UIN | Quincy rgnl-baldwin field | Quincy |
| TIP | Rantoul natl avn cntr-frank elliott fld | Rantoul |
| RSV | Robinson muni | Robinson |
| RPJ | Rochelle muni airport-koritz field | Rochelle |
| 1C8 | Cottonwood | Rockford |
| 5K4 | Schuy-rush | Rushville |
| SLO | Salem-leckrone | Salem |
| SFY | Tri-township | Savanna |
| 2H0 | Shelby county | Shelbyville |
| SAR | Sparta community-hunter field | Sparta |
| SPI | Abraham lincoln capital | Springfield |
| 3K6 | St louis metro-east/shafer field | St jacob |
| SQI | Whiteside co arpt-jos h bittorf fld | Sterling/rockfalls |
| TAZ | Taylorville muni | Taylorville |
| K96 | Tuscola | Tuscola |
| C16 | Frasca field | Urbana |
| VLA | Vandalia muni | Vandalia |
| 2T2 | Percival springs | Watson |
| 2C6 | Tri-county | Yates city |
