| Abbreviation | Definition |
|---|---|
| SDS | Sado Shima, Japan |
| SDSC | Sao Carlos Francisco Pereira L, Brazil |
| SDT | Saidu Sharif, Pakistan |
| SDTF | Tatui, Brazil |
| SDTP | Tupa, Brazil |
| SDTY | Usina Sao Martinho Airport, Pradopolis, Sao Paulo, Brazil |
| SDU | Santos Dumont, Rio de Janiero, Brazil |
| SDUB | Ubatuba, Brazil |
| SDUN | Itaperuna, Brazil |
| SDV | Sde Dov, Israel |
| SDVG | Votuporanga, Brazil |
| SDW | Sandwip, Bangladesh |
| SDX | Sedona, Arizona USA |
| SDY | Sidney- Richland Municipal Airport, Sidney, Montana USA |
| SDYW | Itapeva, Brazil |
| SDZ | Shetland Islands, Scotland, UK |
| SEA | SEATAC International Airport, Seattle/ Tacoma, Washington USA |
| SEAG | Jhikatal, Ecuador |
| SEAM | Ambato, Ecuador |
| SEAN | Ana Maria, Ecuador |