| Sint-Martens-Lennik to Orzesze | 642.51 mi (1,034.02 km) |
| Sint-Martens-Lennik to Osowa | 649.49 mi (1,045.25 km) |
| Sint-Martens-Lennik to Ostroda | 696.72 mi (1,121.27 km) |
| Sint-Martens-Lennik to Ostroleka | 756.31 mi (1,217.16 km) |
| Sint-Martens-Lennik to Ostrow Mazowiecka | 768.84 mi (1,237.32 km) |
| Sint-Martens-Lennik to Ostrow Wielkopolski | 593.38 mi (954.96 km) |
| Sint-Martens-Lennik to Ostrowiec Swietokrzyski | 750.56 mi (1,207.90 km) |
| Sint-Martens-Lennik to Ostrzeszow | 598.55 mi (963.27 km) |
| Sint-Martens-Lennik to Oswiecim | 664.43 mi (1,069.29 km) |
| Sint-Martens-Lennik to Otwock | 740.72 mi (1,192.08 km) |
| Sint-Martens-Lennik to Ozarow Mazowiecki | 721.03 mi (1,160.39 km) |
| Sint-Martens-Lennik to Ozimek | 614.09 mi (988.28 km) |
| Sint-Martens-Lennik to Ozorkow | 656.32 mi (1,056.24 km) |
| Sint-Martens-Lennik to Pabianice | 660.55 mi (1,063.06 km) |
| Sint-Martens-Lennik to Parczew | 809.84 mi (1,303.32 km) |
