| Donostia to Sulakyurt | 1,839.22 mi (2,959.94 km) |
| Donostia to Sultanbeyli | 1,599.33 mi (2,573.88 km) |
| Donostia to Sultandagi | 1,753.07 mi (2,821.30 km) |
| Donostia to Sultanhani | 1,876.67 mi (3,020.21 km) |
| Donostia to Sultanhisar | 1,615.35 mi (2,599.66 km) |
| Donostia to Suluova | 1,921.09 mi (3,091.70 km) |
| Donostia to Sumbas | 2,023.24 mi (3,256.09 km) |
| Donostia to Sungurlu | 1,872.13 mi (3,012.90 km) |
| Donostia to Surmene | 2,140.81 mi (3,445.31 km) |
| Donostia to Suruc | 2,156.70 mi (3,470.88 km) |
| Donostia to Susehri | 2,057.51 mi (3,311.24 km) |
| Donostia to Susurluk | 1,565.86 mi (2,520.00 km) |
| Donostia to Susuz | 2,293.09 mi (3,690.37 km) |
| Donostia to Sutculer | 1,767.98 mi (2,845.29 km) |
| Donostia to Talas | 1,966.93 mi (3,165.46 km) |
