Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Minch Airport | Airport | 196 | Sangamon | 39 43 45 N | 089 53 37 W |
| Mitchell Field (historical) | Airport | 225 | DuPage | 41 55 16 N | 088 02 07 W |
| Mitchell Landing Strip | Airport | 213 | La Salle | 41 21 29 N | 088 38 47 W |
| Mitchell RLA Airport | Airport | 216 | La Salle | 41 22 00 N | 088 39 00 W |
| Mitek Airport | Airport | 235 | Stephenson | 42 29 50 N | 089 47 30 W |
| Moffet Landing Strip | Airport | 180 | Shelby | 39 15 54 N | 088 51 47 W |
| Monmouth Municipal Airport | Airport | 228 | Warren | 40 55 46 N | 090 37 51 W |
| Moores Field | Airport | 222 | Ogle | 42 10 00 N | 089 17 00 W |
| Moran Landing Strip | Airport | 195 | Kankakee | 41 17 12 N | 087 56 28 W |
| Moring Airport | Airport | 272 | Ogle | 42 11 54 N | 089 39 20 W |
| Morris Farm Incorporated Airport | Airport | 204 | Piatt | 39 52 04 N | 088 32 09 W |
| Morris Hospital Heliport | Airport | 156 | Grundy | 41 22 13 N | 088 25 37 W |
| Morris Municipal Airport | Airport | 175 | Grundy | 41 25 45 N | 088 25 00 W |
| Moulton Farms Airport | Airport | 115 | Hamilton | 38 14 47 N | 088 26 26 W |
| Mount Carmel Municipal Airport | Airport | 129 | Lawrence | 38 36 23 N | 087 43 36 W |
| Mount Hawley Auxiliary Airport | Airport | 233 | Peoria | 40 47 42 N | 089 36 47 W |
| Mount Vernon Bullock Heliport | Airport | 146 | Jefferson | 38 18 58 N | 088 57 20 W |
| Mount Vernon/Outland Airport | Airport | 141 | Jefferson | 38 19 23 N | 088 51 30 W |
| Mueller Airport | Airport | 182 | Bond | 38 56 04 N | 089 37 30 W |
| Mulderink Heliport | Airport | 201 | Cook | 41 28 43 N | 087 35 23 W |
| Munch Heliport | Airport | 281 | Boone | 42 25 19 N | 088 43 50 W |
| Murks Strip | Airport | 207 | Knox | 40 44 20 N | 090 22 50 W |
| Mussman Airport | Airport | 213 | Kankakee | 41 16 15 N | 087 34 40 W |
| Naffziger Landing Strip | Airport | 229 | Bureau | 41 28 57 N | 089 32 44 W |
| Nance Airport | Airport | 170 | Bond | 38 53 15 N | 089 33 26 W |
| Naper Aero Club Airport | Airport | 216 | DuPage | 41 44 05 N | 088 12 12 W |
| Neff Airport | Airport | 216 | Henderson | 40 43 53 N | 090 53 22 W |
| Negus Landing Strip | Airport | 198 | Morgan | 39 43 56 N | 090 05 13 W |
| Neiner Airport | Airport | 197 | Kankakee | 41 15 25 N | 087 55 10 W |
| Nelson Airport | Airport | 177 | Grundy | 41 25 05 N | 088 28 20 W |
| Nelson Airport | Airport | 189 | Macoupin | 39 18 28 N | 089 59 35 W |
| Nelson Airport | Airport | 235 | Stark | 41 08 06 N | 089 54 55 W |
| Nelson Private Airport | Airport | 126 | Edwards | 38 24 02 N | 087 59 19 W |
| Nelson Weber Airport | Airport | 209 | Macoupin | 39 29 22 N | 089 57 15 W |
| Nemec Airport | Airport | 300 | Boone | 42 29 15 N | 088 51 10 W |
| Nergenah Airport | Airport | 199 | Sangamon | 39 39 18 N | 089 54 55 W |
| New Lenox-Howell Airport | Airport | 228 | Will | 41 28 49 N | 087 55 17 W |
| Newman Landing Strip | Airport | 197 | Iroquois | 40 41 18 N | 087 44 03 W |
| Nichols RLA Airport | Airport | 128 | Madison | 38 41 55 N | 090 03 40 W |
| Nick Lung Flight Park | Airport | 276 | Ogle | 42 05 50 N | 089 25 09 W |
| Niklaus RLA Airport | Airport | 220 | Piatt | 40 11 00 N | 088 36 55 W |
| Noland RLA Airport | Airport | 186 | Christian | 39 44 00 N | 089 09 00 W |
| Norfleet Farms Airport | Airport | 210 | Piatt | 40 01 15 N | 088 44 20 W |
| Norman Airport | Airport | 232 | Will | 41 21 30 N | 087 43 30 W |
| Norman Landing Strip | Airport | 217 | Will | 41 20 36 N | 087 37 33 W |
| Norman Rittenhouse Heliport | Airport | 205 | Livingston | 40 45 27 N | 088 30 48 W |
| Norris Farms Airport | Airport | 133 | Fulton | 40 20 30 N | 090 05 15 W |
| Northern Illinois Medical Center Heliport | Airport | 248 | Henry | 42 19 10 N | 088 16 44 W |
| Nottke Airport | Airport | 192 | Iroquois | 40 58 27 N | 087 49 25 W |
| O John Clark RLA Airport | Airport | 242 | Lake | 42 22 06 N | 087 59 30 W |
| Oak Knoll Farm Airport | Airport | 235 | Lake | 42 17 38 N | 088 10 50 W |
| Official Airline Guides Heliport | Airport | 200 | DuPage | 41 50 57 N | 087 56 00 W |
| Oink Acres Airport | Airport | 216 | Champaign | 40 09 38 N | 088 24 37 W |
| OK Flying Club Incorporated Airport | Airport | 201 | Montgomery | 39 11 41 N | 089 18 42 W |
| Olivers Heliport | Airport | 271 | Kane | 42 06 00 N | 088 22 09 W |
| Olney-Noble Airport | Airport | 144 | Richland | 38 43 18 N | 088 10 35 W |
| Olson Airport | Airport | 288 | Kane | 42 00 32 N | 088 27 27 W |
| Oltman-Shuck Airport | Airport | 222 | Woodford | 40 53 34 N | 089 06 14 W |
| Olympia Fields Osteopathic Medical Center Heliport | Airport | 215 | Cook | 41 31 17 N | 087 42 43 W |
| Orton Landing Field | Airport | 196 | Greene | 39 25 23 N | 090 32 54 W |
| Orwig RLA Airport | Airport | 169 | Tazewell | 40 24 40 N | 089 34 55 W |
| Ottawa Airport | Airport | 186 | La Salle | 41 21 53 N | 088 51 33 W |
| Otterbach Farm Airport | Airport | 265 | Bureau | 41 34 09 N | 089 10 25 W |
| Otto Junior Airport | Airport | 231 | Ford | 40 38 25 N | 088 11 10 W |
| Our Lady Immaculata Airport | Airport | 175 | Monroe | 38 13 20 N | 090 05 55 W |
| Pal-Waukee Airport | Airport | 195 | Cook | 42 06 48 N | 087 54 03 W |
| Palmer Airport | Airport | 205 | McDonough | 40 29 54 N | 090 34 29 W |
| Palos Community Hospital Heliport | Airport | 204 | Cook | 41 40 08 N | 087 48 47 W |
| Pannier Flying Club Airport | Airport | 244 | McLean | 40 29 57 N | 089 05 11 W |
| Paris Airport (historical) | Airport | 208 | Edgar | 39 39 15 N | 087 43 03 W |
| Paris Community Hospital Heliport | Airport | 214 | Edgar | 39 36 28 N | 087 40 35 W |
| Park Airport | Airport | 196 | Sangamon | 39 39 35 N | 089 53 15 W |
| Parks College Airport | Airport | 125 | St. Clair | 38 34 15 N | 090 11 00 W |
| Parrish RLA Airport | Airport | 196 | Marshall | 40 57 08 N | 089 24 28 W |
| Passavant Memorial Area Hospital Association Heliport | Airport | 174 | Morgan | 39 44 55 N | 090 15 02 W |
| Patten Industries Heliport | Airport | 215 | DuPage | 41 55 27 N | 087 57 48 W |
| Paul E Kroenlein Airport | Airport | 217 | Shelby | 39 36 30 N | 088 51 30 W |
| Paxton Airport | Airport | 232 | Ford | 40 26 56 N | 088 07 39 W |
| PCI Heliport | Airport | 213 | Macon | 39 55 46 N | 089 00 47 W |
| Peabody-Pit 6-New Shop Heliport | Airport | 140 | Randolph | 38 10 49 N | 089 46 46 W |
| Peabody-River King Number 1 Mine Heliport | Airport | 147 | St. Clair | 38 26 36 N | 089 52 05 W |
| Peabody-Will Scarlet Heliport | Airport | 141 | Williamson | 37 38 24 N | 088 42 32 W |
| Peacock Airport | Airport | 191 | La Salle | 41 26 41 N | 088 43 00 W |
| Pekin Memorial Hospital Heliport | Airport | 164 | Tazewell | 40 33 45 N | 089 37 57 W |
| Pekin Municipal Airport | Airport | 158 | Tazewell | 40 29 17 N | 089 40 32 W |
| Pennington Landing Strip | Airport | 192 | Livingston | 40 55 40 N | 088 43 58 W |
| Percival Airport | Airport | 168 | Effingham | 39 00 50 N | 088 32 20 W |
| Perkins Landing Strip | Airport | 198 | Livingston | 40 50 09 N | 088 19 50 W |
| Perry Memorial Hospital Heliport | Airport | 216 | Bureau | 41 22 04 N | 089 27 24 W |
| Petersburg Airport | Airport | 186 | Menard | 40 01 21 N | 089 49 02 W |
| Peterson Farms Airport | Airport | 190 | Kendall | 41 27 39 N | 088 29 13 W |
| Pfister Landing Strip | Airport | 218 | Woodford | 40 46 15 N | 088 59 00 W |
| Phillip H Krohe Airport | Airport | 137 | Cass | 39 56 10 N | 090 28 00 W |
| Phils Airstrip | Airport | 200 | Stark | 40 59 26 N | 089 48 06 W |
| Phipps Airport | Airport | 204 | Kankakee | 41 14 35 N | 087 51 01 W |
| Phyllis Field | Airport | 261 | Henry | 42 13 16 N | 088 25 04 W |
| Piatt County Airport | Airport | 224 | Piatt | 40 00 20 N | 088 33 30 W |
| Pick Landing Strip | Airport | 211 | Livingston | 40 45 58 N | 088 36 33 W |
| Pielet Summit Heliport | Airport | 181 | Cook | 41 47 00 N | 087 49 11 W |
| Pielet-Calumet Heliport | Airport | 179 | Cook | 41 39 43 N | 087 34 38 W |
| Pielet-Joliet Heliport | Airport | 165 | Will | 41 31 01 N | 088 05 24 W |
| Pikes Airport | Airport | 182 | La Salle | 41 18 48 N | 088 51 38 W |
| Pillow Hill Airport | Airport | 248 | Henry | 42 26 50 N | 088 12 05 W |
| Pinckneyville-Du Quoin Airport | Airport | 120 | Perry | 37 58 40 N | 089 21 37 W |
| Pine Hill Airport | Airport | 299 | Boone | 42 28 05 N | 088 44 35 W |
| Piper Airport | Airport | 207 | Bureau | 41 22 04 N | 089 25 51 W |
| Pittsfield Penstone Municipal Airport | Airport | 213 | Pike | 39 38 22 N | 090 46 45 W |
| Plaza Heliport | Airport | 201 | Cook | 42 06 22 N | 087 52 14 W |
| Pleasure Valley Landing Area | Airport | 239 | Stephenson | 42 25 23 N | 089 43 40 W |
| Plum Creek Farm Airport | Airport | 252 | Stephenson | 42 12 56 N | 089 51 50 W |