| Apen to Orzesze | 513.75 mi (826.80 km) |
| Apen to Osowa | 442.25 mi (711.73 km) |
| Apen to Ostroda | 500.57 mi (805.59 km) |
| Apen to Ostroleka | 569.35 mi (916.27 km) |
| Apen to Ostrow Mazowiecka | 585.52 mi (942.31 km) |
| Apen to Ostrow Wielkopolski | 434.88 mi (699.87 km) |
| Apen to Ostrowiec Swietokrzyski | 597.34 mi (961.32 km) |
| Apen to Ostrzeszow | 444.94 mi (716.06 km) |
| Apen to Oswiecim | 535.80 mi (862.29 km) |
| Apen to Otwock | 568.12 mi (914.30 km) |
| Apen to Ozarow Mazowiecki | 547.30 mi (880.80 km) |
| Apen to Ozimek | 476.21 mi (766.39 km) |
| Apen to Ozorkow | 488.74 mi (786.56 km) |
| Apen to Pabianice | 498.86 mi (802.83 km) |
| Apen to Parczew | 642.53 mi (1,034.05 km) |
