| Hwlffordd to Opole | 989.84 mi (1,592.99 km) |
| Hwlffordd to Orzesze | 1,033.58 mi (1,663.39 km) |
| Hwlffordd to Osowa | 984.12 mi (1,583.79 km) |
| Hwlffordd to Ostroda | 1,045.63 mi (1,682.78 km) |
| Hwlffordd to Ostroleka | 1,114.85 mi (1,794.17 km) |
| Hwlffordd to Ostrow Mazowiecka | 1,130.79 mi (1,819.84 km) |
| Hwlffordd to Ostrow Wielkopolski | 971.31 mi (1,563.18 km) |
| Hwlffordd to Ostrowiec Swietokrzyski | 1,132.89 mi (1,823.20 km) |
| Hwlffordd to Ostrzeszow | 979.07 mi (1,575.66 km) |
| Hwlffordd to Oswiecim | 1,055.79 mi (1,699.13 km) |
| Hwlffordd to Otwock | 1,111.21 mi (1,788.32 km) |
| Hwlffordd to Ozarow Mazowiecki | 1,090.59 mi (1,755.14 km) |
| Hwlffordd to Ozimek | 1,001.65 mi (1,612.01 km) |
| Hwlffordd to Ozorkow | 1,029.63 mi (1,657.03 km) |
| Hwlffordd to Pabianice | 1,037.48 mi (1,669.67 km) |
