| Mels to Opole | 460.37 mi (740.89 km) |
| Mels to Orzesze | 476.77 mi (767.29 km) |
| Mels to Osowa | 644.35 mi (1,036.98 km) |
| Mels to Ostroda | 652.37 mi (1,049.89 km) |
| Mels to Ostroleka | 679.16 mi (1,093.00 km) |
| Mels to Ostrow Mazowiecka | 681.26 mi (1,096.38 km) |
| Mels to Ostrow Wielkopolski | 493.36 mi (793.99 km) |
| Mels to Ostrowiec Swietokrzyski | 604.97 mi (973.60 km) |
| Mels to Ostrzeszow | 488.02 mi (785.40 km) |
| Mels to Oswiecim | 493.24 mi (793.79 km) |
| Mels to Otwock | 634.69 mi (1,021.43 km) |
| Mels to Ozarow Mazowiecki | 620.92 mi (999.28 km) |
| Mels to Ozimek | 471.29 mi (758.46 km) |
| Mels to Ozorkow | 557.20 mi (896.73 km) |
| Mels to Pabianice | 549.02 mi (883.57 km) |
