| Sierning to Orzesze | 247.94 mi (399.02 km) |
| Sierning to Osowa | 476.10 mi (766.21 km) |
| Sierning to Ostroda | 461.74 mi (743.11 km) |
| Sierning to Ostroleka | 470.57 mi (757.31 km) |
| Sierning to Ostrow Mazowiecka | 468.13 mi (753.38 km) |
| Sierning to Ostrow Wielkopolski | 293.92 mi (473.02 km) |
| Sierning to Ostrowiec Swietokrzyski | 375.38 mi (604.12 km) |
| Sierning to Ostrzeszow | 283.59 mi (456.39 km) |
| Sierning to Oswiecim | 261.55 mi (420.93 km) |
| Sierning to Otwock | 417.15 mi (671.34 km) |
| Sierning to Ozarow Mazowiecki | 406.79 mi (654.66 km) |
| Sierning to Ozimek | 252.58 mi (406.49 km) |
| Sierning to Ozorkow | 349.41 mi (562.32 km) |
| Sierning to Pabianice | 336.21 mi (541.07 km) |
| Sierning to Parczew | 454.38 mi (731.25 km) |
