| Witham to Opole | 750.57 mi (1,207.93 km) |
| Witham to Orzesze | 794.08 mi (1,277.95 km) |
| Witham to Osowa | 759.34 mi (1,222.03 km) |
| Witham to Ostroda | 816.39 mi (1,313.86 km) |
| Witham to Ostroleka | 882.84 mi (1,420.79 km) |
| Witham to Ostrow Mazowiecka | 897.79 mi (1,444.85 km) |
| Witham to Ostrow Wielkopolski | 733.64 mi (1,180.68 km) |
| Witham to Ostrowiec Swietokrzyski | 894.61 mi (1,439.74 km) |
| Witham to Ostrzeszow | 740.90 mi (1,192.36 km) |
| Witham to Oswiecim | 816.28 mi (1,313.68 km) |
| Witham to Otwock | 875.69 mi (1,409.29 km) |
| Witham to Ozarow Mazowiecki | 855.26 mi (1,376.41 km) |
| Witham to Ozimek | 762.43 mi (1,227.01 km) |
| Witham to Ozorkow | 793.15 mi (1,276.46 km) |
| Witham to Pabianice | 800.18 mi (1,287.76 km) |
