| Westland to Sesena | 3,983.70 mi (6,411.15 km) |
| Westland to Sestao | 3,904.50 mi (6,283.68 km) |
| Westland to Sevilla | 3,979.28 mi (6,404.04 km) |
| Westland to Sevilla La Nueva | 3,960.13 mi (6,373.22 km) |
| Westland to Silla | 4,159.49 mi (6,694.06 km) |
| Westland to Silleda | 3,691.33 mi (5,940.61 km) |
| Westland to Sitges | 4,189.13 mi (6,741.76 km) |
| Westland to Socuellamos | 4,053.71 mi (6,523.81 km) |
| Westland to Soller | 4,283.62 mi (6,893.81 km) |
| Westland to Solsona | 4,148.72 mi (6,676.72 km) |
| Westland to Son Servera | 4,318.44 mi (6,949.86 km) |
| Westland to Sonseca | 3,986.42 mi (6,415.52 km) |
| Westland to Sopelana | 3,903.29 mi (6,281.73 km) |
| Westland to Soria | 3,981.07 mi (6,406.91 km) |
| Westland to Suances | 3,854.45 mi (6,203.13 km) |
