| - | - | Shamrock Municipal | Shamrock | |
| NRI | - | Shangri-la Airport | Shangri-la | |
| - | KEZF | Shannon | Fredericksburg | |
| - | KODX | Sharp | Ord | |
| - | KCVK | Sharp Co Regional | Ash Flat | |
| LRO | - | Sharpe Army Air Field | Lathrop | |
| TGE | - | Sharpe Field | Tuskegee | |
| - | - | Shawano Municipal | Shawano | |
| - | - | Shawnee | Bloomfield | |
| SNL | KSNL | Shawnee Municipal Airport | Shawnee | |
| - | - | Shearer Usfs | Shearer | |
| SMU | PASP | Sheep Mountain Airport | Sheep Mountain | |
| SBX | KSBX | Shelby Airport | Shelby | |
| - | - | Shelby Co | Shelbyville | |
| - | - | Shelby Co | Shelbyville | |
| - | KEET | Shelby Co | Alabaster | |
| - | - | Shelby Community | Shelby | |
| - | KEHO | Shelby Municipal | Shelby | |
| - | KGEZ | Shelbyville Municipal Airport | Shelbyville | |
| SYI | KSYI | Shelbyville Municipal Airport-Bomar Field | Shelbyville | |
| - | KSHL | Sheldon Municipal | Sheldon | |
| - | - | Shell Creek Airpark | Punta Gorda | |
| - | KSSQ | Shell Lake Municipal | Shell Lake | |
| - | - | Shelter Cove | Shelter Cove | |
| SYA | PASY | Shemya Air Force Base | Shemya | |
| - | KSDA | Shenandoah Municipal | Shenandoah | |
| - | - | Shenk | Garrett | |
| - | - | Sheridan | Sheridan | |
| - | - | Sheridan Airport | Sheridan | |
| - | - | Sheridan Municipal | Sheridan | |
| CSM | KCSM | Sherman Airport | Clinton | |
| FLV | KFLV | Sherman Army Air Field | Fort Leavenworth | |
| - | KSWI | Sherman Municipal | Sherman | |
| JSN | - | Sherman Oaks Heliport | Los Angeles | |
| PWD | KPWD | Sherwood Airport | Plentywood | |
| - | - | Shiflet | Marion | |
| - | - | Shingletown | Shingletown | |
| - | - | Shiocton | Shiocton | |
| - | - | Shippensburg | Shippensburg | |
| - | - | Shiprock Airstrip | Shiprock | |
| - | - | Shirley | Shirley | |
| HCB | - | Shoal Cove Airport | Shoal Cove | |
| - | - | Shoshone | Shoshone | |
| - | - | Shoshone Co | Kellogg | |
| - | - | Shoshoni Municipal | Shoshoni | |
| DTN | KDTN | Shreveport Downtown Airport | Shreveport | |
| - | KSZY | Sibley | Selmer | |
| - | KISB | Sibley Municipal | Sibley | |
| SXY | - | Sidney Airport | Sidney | |
| - | - | Sidney Municipal | Sidney | |