| Diksmuide to Oria | 1,014.31 mi (1,632.37 km) |
| Diksmuide to Oristano | 816.72 mi (1,314.38 km) |
| Diksmuide to Orta Nova | 906.81 mi (1,459.37 km) |
| Diksmuide to Orte | 743.01 mi (1,195.77 km) |
| Diksmuide to Ortona | 809.74 mi (1,303.15 km) |
| Diksmuide to Orvieto | 720.39 mi (1,159.36 km) |
| Diksmuide to Orzinuovi | 506.81 mi (815.63 km) |
| Diksmuide to Osimo | 719.70 mi (1,158.25 km) |
| Diksmuide to Ospitaletto | 502.51 mi (808.72 km) |
| Diksmuide to Ostuni | 1,000.20 mi (1,609.67 km) |
| Diksmuide to Ottaviano | 895.69 mi (1,441.47 km) |
| Diksmuide to Ovada | 516.38 mi (831.04 km) |
| Diksmuide to Ozieri | 779.39 mi (1,254.31 km) |
| Diksmuide to Paceco | 1,018.11 mi (1,638.49 km) |
| Diksmuide to Pachino | 1,158.33 mi (1,864.15 km) |
