| Abbreviation | Definition |
|---|---|
| SOD | Sorocaba, Sao Paulo, Brazil |
| SOE | Souanke, Congo |
| SOF | Sofia, Bulgaria |
| SOG | Sogndal, Norway |
| SOI | South Molle Island, Queensland, Australia |
| SOJ | Sorkjosen Airport, Sorkjosen, Norway |
| SOK | Semongkong, Lesotho |
| SOM | San Tome, Venezuela |
| SOML | Malin, Peru |
| SON | Espiritu Santo, Vanuatu |
| SOO | Soderhamn, Sweden |
| SOOG | St. George Oyapock, French Guyana |
| SOOM | St. Laurent du Maroni, French Guyana |
| SOOR | Regina, French Guyana |
| SOOS | Saul, French Guyana |
| SOOY | Sinnamary, French Guyana |
| SOP | Moore County Airport, Pinehurst, North Carolina USA |
| SOQ | Sorong, Indonesia |
| SOR | Al Thaurah, Syria |
| SOT | Sodankyla, Finland |