| Valongo to Opole | 1,418.79 mi (2,283.32 km) |
| Valongo to Orzesze | 1,443.47 mi (2,323.04 km) |
| Valongo to Osowa | 1,534.76 mi (2,469.96 km) |
| Valongo to Ostroda | 1,570.21 mi (2,527.01 km) |
| Valongo to Ostroleka | 1,617.15 mi (2,602.55 km) |
| Valongo to Ostrow Mazowiecka | 1,624.72 mi (2,614.73 km) |
| Valongo to Ostrow Wielkopolski | 1,435.58 mi (2,310.35 km) |
| Valongo to Ostrowiec Swietokrzyski | 1,569.59 mi (2,526.01 km) |
| Valongo to Ostrzeszow | 1,434.95 mi (2,309.34 km) |
| Valongo to Oswiecim | 1,461.76 mi (2,352.48 km) |
| Valongo to Otwock | 1,585.44 mi (2,551.51 km) |
| Valongo to Ozarow Mazowiecki | 1,568.54 mi (2,524.32 km) |
| Valongo to Ozimek | 1,430.63 mi (2,302.38 km) |
| Valongo to Ozorkow | 1,501.97 mi (2,417.19 km) |
| Valongo to Pabianice | 1,499.17 mi (2,412.68 km) |
