| Comarnic to Opole | 516.20 mi (830.74 km) |
| Comarnic to Orzesze | 465.53 mi (749.20 km) |
| Comarnic to Osowa | 709.00 mi (1,141.02 km) |
| Comarnic to Ostroda | 636.33 mi (1,024.07 km) |
| Comarnic to Ostroleka | 570.20 mi (917.65 km) |
| Comarnic to Ostrow Mazowiecka | 548.15 mi (882.17 km) |
| Comarnic to Ostrow Wielkopolski | 568.40 mi (914.74 km) |
| Comarnic to Ostrowiec Swietokrzyski | 438.39 mi (705.51 km) |
| Comarnic to Ostrzeszow | 553.13 mi (890.17 km) |
| Comarnic to Oswiecim | 445.25 mi (716.56 km) |
| Comarnic to Otwock | 514.29 mi (827.67 km) |
| Comarnic to Ozarow Mazowiecki | 529.03 mi (851.39 km) |
| Comarnic to Ozimek | 507.70 mi (817.07 km) |
| Comarnic to Ozorkow | 546.80 mi (879.99 km) |
| Comarnic to Pabianice | 526.41 mi (847.17 km) |
