| Gretna to Sinop | 6,366.32 mi (10,245.60 km) |
| Gretna to Siran | 6,601.15 mi (10,623.52 km) |
| Gretna to Sirnak | 6,858.03 mi (11,036.93 km) |
| Gretna to Sirvan | 6,814.18 mi (10,966.36 km) |
| Gretna to Sivas | 6,546.78 mi (10,536.02 km) |
| Gretna to Sivasli | 6,322.30 mi (10,174.76 km) |
| Gretna to Siverek | 6,732.34 mi (10,834.65 km) |
| Gretna to Sivrice | 6,696.66 mi (10,777.23 km) |
| Gretna to Sivrihisar | 6,352.13 mi (10,222.77 km) |
| Gretna to Sogut | 6,272.26 mi (10,094.23 km) |
| Gretna to Sogutlu | 6,243.70 mi (10,048.27 km) |
| Gretna to Soke | 6,261.08 mi (10,076.23 km) |
| Gretna to Solhan | 6,732.45 mi (10,834.84 km) |
| Gretna to Soma | 6,205.78 mi (9,987.23 km) |
| Gretna to Sorgun | 6,475.55 mi (10,421.40 km) |
