| Morlanwelz-Mariemont to Oria | 942.76 mi (1,517.22 km) |
| Morlanwelz-Mariemont to Oristano | 758.48 mi (1,220.66 km) |
| Morlanwelz-Mariemont to Orta Nova | 835.74 mi (1,345.00 km) |
| Morlanwelz-Mariemont to Orte | 673.91 mi (1,084.55 km) |
| Morlanwelz-Mariemont to Ortona | 738.83 mi (1,189.03 km) |
| Morlanwelz-Mariemont to Orvieto | 651.35 mi (1,048.24 km) |
| Morlanwelz-Mariemont to Orzinuovi | 437.21 mi (703.62 km) |
| Morlanwelz-Mariemont to Osimo | 648.58 mi (1,043.79 km) |
| Morlanwelz-Mariemont to Ospitaletto | 432.46 mi (695.98 km) |
| Morlanwelz-Mariemont to Ostuni | 928.58 mi (1,494.40 km) |
| Morlanwelz-Mariemont to Ottaviano | 825.87 mi (1,329.11 km) |
| Morlanwelz-Mariemont to Ovada | 450.97 mi (725.77 km) |
| Morlanwelz-Mariemont to Ozieri | 719.28 mi (1,157.57 km) |
| Morlanwelz-Mariemont to Paceco | 953.33 mi (1,534.24 km) |
| Morlanwelz-Mariemont to Pachino | 1,091.08 mi (1,755.93 km) |
