| Herstal to Orzesze | 577.92 mi (930.08 km) |
| Herstal to Osowa | 597.53 mi (961.63 km) |
| Herstal to Ostroda | 641.03 mi (1,031.64 km) |
| Herstal to Ostroleka | 698.12 mi (1,123.52 km) |
| Herstal to Ostrow Mazowiecka | 709.86 mi (1,142.41 km) |
| Herstal to Ostrow Wielkopolski | 531.65 mi (855.61 km) |
| Herstal to Ostrowiec Swietokrzyski | 687.45 mi (1,106.35 km) |
| Herstal to Ostrzeszow | 536.21 mi (862.95 km) |
| Herstal to Oswiecim | 599.77 mi (965.23 km) |
| Herstal to Otwock | 680.05 mi (1,094.44 km) |
| Herstal to Ozarow Mazowiecki | 660.63 mi (1,063.19 km) |
| Herstal to Ozimek | 550.21 mi (885.48 km) |
| Herstal to Ozorkow | 595.36 mi (958.14 km) |
| Herstal to Pabianice | 598.79 mi (963.66 km) |
| Herstal to Parczew | 748.14 mi (1,204.01 km) |
