| Etterbeek to Orzesze | 632.27 mi (1,017.54 km) |
| Etterbeek to Osowa | 639.43 mi (1,029.06 km) |
| Etterbeek to Ostroda | 686.44 mi (1,104.72 km) |
| Etterbeek to Ostroleka | 745.92 mi (1,200.45 km) |
| Etterbeek to Ostrow Mazowiecka | 758.43 mi (1,220.57 km) |
| Etterbeek to Ostrow Wielkopolski | 582.95 mi (938.16 km) |
| Etterbeek to Ostrowiec Swietokrzyski | 740.16 mi (1,191.18 km) |
| Etterbeek to Ostrzeszow | 588.13 mi (946.50 km) |
| Etterbeek to Oswiecim | 654.20 mi (1,052.83 km) |
| Etterbeek to Otwock | 730.28 mi (1,175.28 km) |
| Etterbeek to Ozarow Mazowiecki | 710.60 mi (1,143.60 km) |
| Etterbeek to Ozimek | 603.76 mi (971.65 km) |
| Etterbeek to Ozorkow | 645.88 mi (1,039.44 km) |
| Etterbeek to Pabianice | 650.12 mi (1,046.26 km) |
| Etterbeek to Parczew | 799.41 mi (1,286.52 km) |
