| Aalst to Orzesze | 647.13 mi (1,041.45 km) |
| Aalst to Osowa | 649.30 mi (1,044.95 km) |
| Aalst to Ostroda | 697.54 mi (1,122.58 km) |
| Aalst to Ostroleka | 757.88 mi (1,219.70 km) |
| Aalst to Ostrow Mazowiecka | 770.68 mi (1,240.29 km) |
| Aalst to Ostrow Wielkopolski | 596.39 mi (959.79 km) |
| Aalst to Ostrowiec Swietokrzyski | 754.17 mi (1,213.73 km) |
| Aalst to Ostrzeszow | 601.83 mi (968.55 km) |
| Aalst to Oswiecim | 669.10 mi (1,076.81 km) |
| Aalst to Otwock | 743.22 mi (1,196.09 km) |
| Aalst to Ozarow Mazowiecki | 723.43 mi (1,164.25 km) |
| Aalst to Ozimek | 618.20 mi (994.90 km) |
| Aalst to Ozorkow | 658.96 mi (1,060.50 km) |
| Aalst to Pabianice | 663.54 mi (1,067.87 km) |
| Aalst to Parczew | 812.76 mi (1,308.01 km) |
