| Pont-y-pwl to Orbetello | 924.09 mi (1,487.18 km) |
| Pont-y-pwl to Oria | 1,249.55 mi (2,010.95 km) |
| Pont-y-pwl to Oristano | 986.47 mi (1,587.58 km) |
| Pont-y-pwl to Orta Nova | 1,138.14 mi (1,831.66 km) |
| Pont-y-pwl to Orte | 963.24 mi (1,550.19 km) |
| Pont-y-pwl to Ortona | 1,040.62 mi (1,674.72 km) |
| Pont-y-pwl to Orvieto | 940.65 mi (1,513.83 km) |
| Pont-y-pwl to Orzinuovi | 734.31 mi (1,181.75 km) |
| Pont-y-pwl to Osimo | 953.13 mi (1,533.92 km) |
| Pont-y-pwl to Ospitaletto | 732.47 mi (1,178.80 km) |
| Pont-y-pwl to Ostuni | 1,236.30 mi (1,989.64 km) |
| Pont-y-pwl to Ottaviano | 1,118.21 mi (1,799.59 km) |
| Pont-y-pwl to Ovada | 725.21 mi (1,167.11 km) |
| Pont-y-pwl to Ozieri | 957.85 mi (1,541.50 km) |
| Pont-y-pwl to Paceco | 1,212.06 mi (1,950.62 km) |
