| San Mateo to Sesena | 5,813.08 mi (9,355.25 km) |
| San Mateo to Sestao | 5,679.49 mi (9,140.26 km) |
| San Mateo to Sevilla | 5,865.73 mi (9,439.98 km) |
| San Mateo to Sevilla La Nueva | 5,788.84 mi (9,316.24 km) |
| San Mateo to Silla | 5,970.35 mi (9,608.35 km) |
| San Mateo to Silleda | 5,519.56 mi (8,882.87 km) |
| San Mateo to Sitges | 5,951.63 mi (9,578.22 km) |
| San Mateo to Socuellamos | 5,886.73 mi (9,473.77 km) |
| San Mateo to Soller | 6,059.10 mi (9,751.18 km) |
| San Mateo to Solsona | 5,902.37 mi (9,498.94 km) |
| San Mateo to Son Servera | 6,089.49 mi (9,800.09 km) |
| San Mateo to Sonseca | 5,823.64 mi (9,372.24 km) |
| San Mateo to Sopelana | 5,676.92 mi (9,136.13 km) |
| San Mateo to Soria | 5,775.28 mi (9,294.41 km) |
| San Mateo to Suances | 5,636.65 mi (9,071.31 km) |
