| Seraing to Orzesze | 583.95 mi (939.78 km) |
| Seraing to Osowa | 605.50 mi (974.46 km) |
| Seraing to Ostroda | 648.75 mi (1,044.06 km) |
| Seraing to Ostroleka | 705.59 mi (1,135.54 km) |
| Seraing to Ostrow Mazowiecka | 717.23 mi (1,154.27 km) |
| Seraing to Ostrow Wielkopolski | 538.59 mi (866.78 km) |
| Seraing to Ostrowiec Swietokrzyski | 694.03 mi (1,116.93 km) |
| Seraing to Ostrzeszow | 543.02 mi (873.90 km) |
| Seraing to Oswiecim | 605.75 mi (974.87 km) |
| Seraing to Otwock | 687.17 mi (1,105.89 km) |
| Seraing to Ozarow Mazowiecki | 667.80 mi (1,074.72 km) |
| Seraing to Ozimek | 556.56 mi (895.69 km) |
| Seraing to Ozorkow | 602.44 mi (969.53 km) |
| Seraing to Pabianice | 605.71 mi (974.80 km) |
| Seraing to Parczew | 755.05 mi (1,215.14 km) |
