| Ostrow Mazowiecka to Sestao | 1,314.16 mi (2,114.94 km) |
| Ostrow Mazowiecka to Sevilla | 1,716.67 mi (2,762.71 km) |
| Ostrow Mazowiecka to Sevilla La Nueva | 1,489.01 mi (2,396.34 km) |
| Ostrow Mazowiecka to Silla | 1,405.56 mi (2,262.03 km) |
| Ostrow Mazowiecka to Silleda | 1,548.62 mi (2,492.26 km) |
| Ostrow Mazowiecka to Sitges | 1,231.36 mi (1,981.69 km) |
| Ostrow Mazowiecka to Socuellamos | 1,494.82 mi (2,405.68 km) |
| Ostrow Mazowiecka to Soller | 1,277.41 mi (2,055.79 km) |
| Ostrow Mazowiecka to Solsona | 1,203.61 mi (1,937.02 km) |
| Ostrow Mazowiecka to Son Servera | 1,263.57 mi (2,033.51 km) |
| Ostrow Mazowiecka to Sonseca | 1,517.45 mi (2,442.11 km) |
| Ostrow Mazowiecka to Sopelana | 1,310.09 mi (2,108.38 km) |
| Ostrow Mazowiecka to Soria | 1,362.58 mi (2,192.87 km) |
| Ostrow Mazowiecka to Suances | 1,350.17 mi (2,172.89 km) |
| Ostrow Mazowiecka to Sueca | 1,410.36 mi (2,269.76 km) |
