| Ostrow Mazowiecka to Rybnik | 236.69 mi (380.92 km) |
| Ostrow Mazowiecka to Ryki | 80.62 mi (129.75 km) |
| Ostrow Mazowiecka to Rypin | 103.68 mi (166.85 km) |
| Ostrow Mazowiecka to Rzeszow | 191.21 mi (307.72 km) |
| Ostrow Mazowiecka to Sandomierz | 146.39 mi (235.59 km) |
| Ostrow Mazowiecka to Sanok | 224.97 mi (362.06 km) |
| Ostrow Mazowiecka to Sedziszow Malopolski | 189.05 mi (304.24 km) |
| Ostrow Mazowiecka to Sepolno Krajenskie | 186.63 mi (300.36 km) |
| Ostrow Mazowiecka to Sidlice | 171.92 mi (276.68 km) |
| Ostrow Mazowiecka to Siechnice | 236.10 mi (379.96 km) |
| Ostrow Mazowiecka to Siedlce | 46.57 mi (74.95 km) |
| Ostrow Mazowiecka to Siemianowice Slaskie | 214.68 mi (345.49 km) |
| Ostrow Mazowiecka to Siemiatycze | 47.89 mi (77.08 km) |
| Ostrow Mazowiecka to Sieradz | 157.04 mi (252.73 km) |
| Ostrow Mazowiecka to Sierpc | 93.38 mi (150.28 km) |
