| Abbreviation | Definition |
|---|---|
| SERT | Santa Rita, Ecuador |
| SERY | Sarayacu, Ecuador |
| SES | Selma, Alabama USA |
| SESA | Salinas General Ulpiano Paez, Ecuador |
| SESC | Sucua, Ecuador |
| SESD | Santo Domingo-Los Colorados, Ecuador |
| SESE | Secadal, Ecuador |
| SESF | San Francisco, Ecuador |
| SESH | San Honorato, Ecuador |
| SESI | Sur Iliniza, Ecuador |
| SESL | San Lorenzo, Ecuador |
| SESN | San Carlos, Ecuador |
| SESO | La Esterella, Ecuador |
| SEST | San Cristobal, Ecuador |
| SESU | Sausalito, Ecuador |
| SESX | San Jose de Chamanga, Ecuador |
| SESY | Sur Cayambe, Ecuador |
| SESZ | Sur Antizana, Ecuador |
| SET | St. Charles County SMARTT Airport, Grafton, Illinois USA |
| SETA | Taura, Ecuador |