| - | - | Royalton | Gasport | |
| - | - | Rudy'S Gliderport | High Springs | |
| - | - | Rudys | Vineland | |
| - | KRUG | Rugby Municipal | Rugby | |
| - | - | Ruhe'S | Leipsic | |
| RUI | KSRR | Ruidoso Municipal Airport | Ruidoso | |
| - | - | Ruleville-Drew | Drew | |
| - | KROS | Rush City Regional | Rush City | |
| - | - | Rushford Municipal | Rushford | |
| - | - | Rusk Co | Henderson | |
| - | KRCX | Rusk Co | Ladysmith | |
| RSL | KRSL | Russell Airport | Russell | |
| - | - | Russellville Municipal | Russellville | |
| - | - | Russellville-Logan Co | Russellville | |
| - | - | Rust | Woolsey | |
| RSN | KRSN | Ruston Airport | Ruston | |
| - | - | Ruth | Ruth | |
| - | KFQD | Rutherford Co-Marchman | Rutherfordton | |
| - | - | RWJ Airpark | Baytown | |
| - | KRYN | Ryan | Tucson | |
| HMT | KHMT | Ryan Field | Hemet | |
| - | - | Ryegate | Ryegate | |
| - | KSKI | Sac City Municipal | Sac City | |
| - | - | Sackman Field | Columbia | |
| - | - | Saginaw | Ft Worth | |
| SGW | - | Saginaw Bay Airport | Saginaw Bay | |
| - | KHYX | Saginaw Co-Browne | Saginaw | |
| - | - | Saguache Municipal | Saguache | |
| SJN | KSJN | Saint Johns Municipal Airport | Saint Johns | |
| LTW | - | Saint Marys County Airport | Leonardtown | |
| - | KAMT | Salamon | West Union | |
| - | - | Salem | Salem | |
| - | - | Salem | Salem | |
| - | - | Salem Municipal | Salem | |
| SBO | - | Salina Airport | Salina | |
| - | - | Saline | Saline | |
| - | - | Saline Co/Watts | Benton | |
| - | KJSV | Sallisaw Municipal | Sallisaw | |
| - | - | Salmon Lake | Salmon Lake | |
| - | - | Salmon River | Marlborough | |
| - | - | Salt Lake City Mun No 2 | Salt Lake City | |
| SAS | KSAS | Salton City Airport | Salton City | |
| - | - | Saluda Co | Saluda | |
| - | - | Salyer Farms | Corcoran | |
| CTZ | KCTZ | Sampson County Airport | Clinton | |
| BRY | KBRY | Samuels Field | Bardstown | |
| - | - | San Ardo | San Ardo | |
| - | - | San Augustine Co | San Augustine | |
| - | - | San Carlos Apache | Globe | |
| - | KNUC | San Clemente I Nalf | San Clemente I | |