| Seymour to Sesena | 4,210.49 mi (6,776.14 km) |
| Seymour to Sestao | 4,139.71 mi (6,662.23 km) |
| Seymour to Sevilla | 4,195.82 mi (6,752.53 km) |
| Seymour to Sevilla La Nueva | 4,187.18 mi (6,738.62 km) |
| Seymour to Silla | 4,388.07 mi (7,061.92 km) |
| Seymour to Silleda | 3,920.22 mi (6,308.98 km) |
| Seymour to Sitges | 4,424.23 mi (7,120.11 km) |
| Seymour to Socuellamos | 4,279.47 mi (6,887.14 km) |
| Seymour to Soller | 4,516.46 mi (7,268.53 km) |
| Seymour to Solsona | 4,385.17 mi (7,057.25 km) |
| Seymour to Son Servera | 4,551.66 mi (7,325.19 km) |
| Seymour to Sonseca | 4,211.92 mi (6,778.42 km) |
| Seymour to Sopelana | 4,138.69 mi (6,660.58 km) |
| Seymour to Soria | 4,213.18 mi (6,780.46 km) |
| Seymour to Suances | 4,089.02 mi (6,580.64 km) |
