| Ostrow Mazowiecka to Ruzomberok | 280.75 mi (451.82 km) |
| Ostrow Mazowiecka to Sabinov | 257.67 mi (414.68 km) |
| Ostrow Mazowiecka to Sal'a | 366.60 mi (589.98 km) |
| Ostrow Mazowiecka to Samorin | 386.58 mi (622.14 km) |
| Ostrow Mazowiecka to Senec | 373.05 mi (600.36 km) |
| Ostrow Mazowiecka to Senica | 346.69 mi (557.95 km) |
| Ostrow Mazowiecka to Sered' | 361.33 mi (581.51 km) |
| Ostrow Mazowiecka to Skalica | 341.00 mi (548.79 km) |
| Ostrow Mazowiecka to Smizany | 272.25 mi (438.14 km) |
| Ostrow Mazowiecka to Snina | 263.61 mi (424.25 km) |
| Ostrow Mazowiecka to Spisska Nova Ves | 272.68 mi (438.83 km) |
| Ostrow Mazowiecka to Stara L'ubovna | 246.93 mi (397.39 km) |
| Ostrow Mazowiecka to Stara Tura | 333.03 mi (535.96 km) |
| Ostrow Mazowiecka to Stropkov | 248.63 mi (400.12 km) |
| Ostrow Mazowiecka to Stupava | 378.58 mi (609.26 km) |
