| Ciechanow to Orzesze | 204.41 mi (328.97 km) |
| Ciechanow to Osowa | 139.52 mi (224.53 km) |
| Ciechanow to Ostroda | 63.82 mi (102.71 km) |
| Ciechanow to Ostroleka | 41.23 mi (66.35 km) |
| Ciechanow to Ostrow Mazowiecka | 53.07 mi (85.41 km) |
| Ciechanow to Ostrow Wielkopolski | 145.81 mi (234.67 km) |
| Ciechanow to Ostrowiec Swietokrzyski | 137.52 mi (221.32 km) |
| Ciechanow to Ostrzeszow | 152.12 mi (244.81 km) |
| Ciechanow to Oswiecim | 204.66 mi (329.37 km) |
| Ciechanow to Otwock | 58.27 mi (93.78 km) |
| Ciechanow to Ozarow Mazowiecki | 45.45 mi (73.15 km) |
| Ciechanow to Ozimek | 183.50 mi (295.31 km) |
| Ciechanow to Ozorkow | 84.28 mi (135.63 km) |
| Ciechanow to Pabianice | 99.30 mi (159.81 km) |
| Ciechanow to Parczew | 127.22 mi (204.74 km) |
