| Seaham to Sesena | 1,023.98 mi (1,647.93 km) |
| Seaham to Sestao | 800.09 mi (1,287.62 km) |
| Seaham to Sevilla | 1,235.65 mi (1,988.58 km) |
| Seaham to Sevilla La Nueva | 1,008.95 mi (1,623.75 km) |
| Seaham to Silla | 1,070.31 mi (1,722.50 km) |
| Seaham to Silleda | 894.56 mi (1,439.65 km) |
| Seaham to Sitges | 951.00 mi (1,530.48 km) |
| Seaham to Socuellamos | 1,076.29 mi (1,732.12 km) |
| Seaham to Soller | 1,058.08 mi (1,702.81 km) |
| Seaham to Solsona | 896.97 mi (1,443.54 km) |
| Seaham to Son Servera | 1,073.81 mi (1,728.13 km) |
| Seaham to Sonseca | 1,053.02 mi (1,694.67 km) |
| Seaham to Sopelana | 795.12 mi (1,279.62 km) |
| Seaham to Soria | 904.73 mi (1,456.02 km) |
| Seaham to Suances | 797.43 mi (1,283.35 km) |
