| Name | Type | IATA | ICAO | City |
|---|---|---|---|---|
| Shubert Airport | Small Airport | - | US-5538 |
Coulterville |
| Shumway Innernational Airport | Small Airport | - | US-6182 |
Effingham |
| Sies Landing Area Airport | Small Airport | - | 1LL4 |
Litchfield |
| Sills-Anderson Heliport | Closed Airport | - | US-10716 |
Winnebago |
| Silver Creek Gliderport | Small Airport | - | 3IL1 |
New Douglas |
| Silver Cross Hospital Heliport | Closed Airport | - | US-9433 |
Joliet |
| Silver Cross Hospital Heliport | Heliport | - | 9IL9 |
New Lenox |
| Sinele's Sunset Strip | Small Airport | - | 69IS |
Niota |
| Sinele Strip | Small Airport | - | 06IS |
Nauvoo |
| Sisk Restricted Landing Area | Closed Airport | - | US-0929 |
Dunlap |
| Skillet Fork Farm Airport | Small Airport | - | 19IS |
Wayne City |
| Skinner Airport | Closed Airport | - | US-2127 |
Grand Ridge |
| Skydive Chicago Airport | Small Airport | - | K8N2 |
Ottawa |
| Sky Harbor Airport | Closed Airport | - | US-12588 |
Northbrook |
| Sky Soaring Airport | Small Airport | - | 55LL |
Union |
| Smith Airport | Small Airport | - | LL27 |
Macomb |
| Smith Airport | Closed Airport | - | US-7711 |
Mount Carmel |
| Smith Airport | Closed Airport | - | US-5903 |
Franklin |
| Smith Restricted Landing Area | Closed Airport | - | US-11581 |
Greenfield |
| Smith Restricted Landing Area | Small Airport | - | 4IS5 |
Hecker |
| Smith Restricted Landing Area | Small Airport | - | 61LL |
Peirron |
| Smith Restricted Landing Area | Small Airport | - | 6LL5 |
New Berlin |
| Snake Creek Airport | Closed Airport | - | US-7550 |
Paris |
| Sneek Airport | Small Airport | - | 2IL0 |
Shannon |
| Snow Airport | Closed Airport | - | US-9885 |
Macon |
| Somers Blossom Airport | Closed Airport | - | US-9878 |
Lindenwood |
| Songwood Inn Airport | Closed Airport | - | US-10558 |
Watseka |
| South City Hospital Heliport | Heliport | - | US-4349 |
Mosinee |
| Southern Illinois Airport | Medium Airport | MDH | KMDH |
Murphysboro |
| South Suburban Heliport | Heliport | - | US-7476 |
Peotone |
| Spangler Airport | Small Airport | - | 58IL |
Manteno |
| Sparta Community Airport - Hunter Field | Small Airport | SAR | KSAR |
Sparta |
| Spence Airport | Closed Airport | - | US-7639 |
Farmer City |
| Spring Bay Seaplane Base | Seaplane Base | - | US-6784 |
Spring Bay |
| Spring Brook Airport | Small Airport | - | 1LL2 |
Seneca |
| Springfield Southwest Airpark | Small Airport | - | IL97 |
New Berlin |
| St Anthony Medical Center Heliport | Heliport | - | LL84 |
Rockford |
| St Anthony Memorial Hospital Heliport | Heliport | - | 11IS |
Effingham |
| Stanton Airport | Small Airport | - | 91IS |
Riverton |
| Stark Heliport | Heliport | - | IL14 |
Bloomington |
| State Highway Paris Heliport | Heliport | - | 8LL6 |
Paris |
| Staton Airport | Small Airport | - | 4LL1 |
Steward |
| Stauss Hospital - Galena Heliport | Heliport | - | 24IS |
Galena |
| Steel Supply Heliport | Heliport | - | 76IS |
Rolling Meadows |
| Steil Restricted Landing Area Airport | Small Airport | - | US-4865 |
Tiskilwa |
| St Elizabeth's Hospital Heliport | Heliport | - | US-0852 |
O'Fallon |
| St Elizabeth's Hospital Heliport | Heliport | - | IL73 |
Belleville |
| Stewart Airport | Closed Airport | - | US-7548 |
Paris |
| St Francis Hospital - Litchfield Heliport | Heliport | - | 73IL |
Litchfield |
| Stichnoth Airport | Small Airport | - | US-0495 |
Stockland |
| Stillman Fire Heliport | Heliport | - | 3IL3 |
Stillman Valley |
| St James Hospital and Health Centers Heliport | Closed Airport | - | US-11014 |
Chicago Heights |
| St James Hospital Heliport | Heliport | - | LL42 |
Pontiac |
| St Johns Hospital Heliport | Heliport | - | 97IS |
Springfield |
| St Joseph Medical Center - Bloomington Heliport | Heliport | - | IL40 |
Bloomington |
| St Joseph Medical Center - Joliet Heliport | Heliport | - | 6IS9 |
Joliet |
| St Joseph Memorial Hospital Heliport | Heliport | - | IS38 |
Murphysboro |
| St Joseph's Hospital - Breese Heliport | Heliport | - | 8IS0 |
Breese |
| St Joseph's Hospital-Highland Heliport | Heliport | - | IL66 |
Highland |
| St Louis Downtown Airport | Small Airport | CPS | KCPS |
Cahokia/St Louis |
| St Louis Metro-East Airport/Shafer Field | Small Airport | - | K3K6 |
St Jacob |
| St Louis Regional Airport | Medium Airport | ALN | KALN |
Alton/St Louis |
| St Margarets Hospital Heliport | Heliport | - | 3LL7 |
Spring Valley |
| St Mary Medical Center - Galesburg Heliport | Heliport | - | IL89 |
Galesburg |
| St. Mary's Good Samaritan Heliport | Heliport | - | US-0431 |
Mount Vernon |
| St Mary's Hospital - Centralia Heliport | Heliport | - | 98IL |
Centralia |
| St Mary's Hospital - Decatur Heliport | Heliport | - | 9IS3 |
Decatur |
| Stockton Airport | Small Airport | - | IS37 |
Stockton |
| Stoney Real Estate Airport | Small Airport | - | LL13 |
Enfield |
| Stoune Restricted Landing Area Airport | Closed Airport | - | US-7655 |
Tower Hill |
| Straeter Restricted Landing Area | Small Airport | - | US-8457 |
Highland |
| Stutzke Airport | Small Airport | - | LL38 |
Sterling |
| Sue Rock International Airport | Small Airport | - | IS93 |
Rock City |
| Sugar Creek Airport | Closed Airport | - | US-7549 |
Paris |
| Sugar Hollow RLA Airport | Small Airport | - | US-0482 |
Lane |
| Sullivan Airport | Small Airport | - | 39LL |
Hamilton |
| Sunset Acres Airport | Small Airport | - | LL24 |
Saint George |
| Sunset Airport | Closed Airport | - | US-5904 |
Greenfield |
| Sutton Airport | Closed Airport | - | US-9874 |
Omaha |
| Swan Valley Farm Airport | Small Airport | - | 1IS4 |
Lanark |
| Swedish American Heliport | Heliport | - | 09IS |
Rockford |
| Sweedler Airport | Closed Airport | - | 3IL2 |
Elwood |
| Sword's Heliport | Heliport | - | 1IS8 |
Ashton |
| Sycamore Fire Department Heliport | Heliport | - | IS76 |
Sycamore |
| Taft Airport | Closed Airport | - | US-10939 |
Rochester |
| Tamms Correctional Center Heliport | Heliport | - | 31IL |
Tamms |
| Taylor Airport | Closed Airport | - | US-9314 |
Round Lake Beach |
| Taylor Airport | Small Airport | - | IL07 |
Amboy |
| Taylorville Memorial Hospital Heliport | Heliport | - | 2LL0 |
Taylorville |
| Taylorville Municipal Airport | Small Airport | - | KTAZ |
Taylorville |
| Ted's Place Airport | Small Airport | - | 71IS |
Paxton |
| Testoni Farms Airport | Closed Airport | - | US-11434 |
Cornell |
| Teubel Airport | Closed Airport | - | US-1081 |
Dunlap |
| Thacker Airport | Small Airport | - | 11LL |
Chenoa |
| The American Coal Company Heliport | Heliport | - | 6IL1 |
Galatia |
| The Sandbox Airport | Closed Airport | - | US-9948 |
Cordova |
| Thompson Airport | Small Airport | - | 9IL4 |
Steward |
| Thompson Airport | Small Airport | - | US-7506 |
Annawan |
| Thornton Airport | Closed Airport | - | US-6373 |
Toledo |
| Thorp Airport | Small Airport | - | LL34 |
Wapella |