| Heist-op-den-Berg to Oria | 957.34 mi (1,540.68 km) |
| Heist-op-den-Berg to Oristano | 794.47 mi (1,278.58 km) |
| Heist-op-den-Berg to Orta Nova | 852.73 mi (1,372.33 km) |
| Heist-op-den-Berg to Orte | 696.77 mi (1,121.35 km) |
| Heist-op-den-Berg to Ortona | 756.61 mi (1,217.65 km) |
| Heist-op-den-Berg to Orvieto | 674.41 mi (1,085.36 km) |
| Heist-op-den-Berg to Orzinuovi | 459.97 mi (740.25 km) |
| Heist-op-den-Berg to Osimo | 665.79 mi (1,071.49 km) |
| Heist-op-den-Berg to Ospitaletto | 454.10 mi (730.80 km) |
| Heist-op-den-Berg to Ostuni | 942.77 mi (1,517.24 km) |
| Heist-op-den-Berg to Ottaviano | 846.71 mi (1,362.65 km) |
| Heist-op-den-Berg to Ovada | 480.89 mi (773.92 km) |
| Heist-op-den-Berg to Ozieri | 753.81 mi (1,213.14 km) |
| Heist-op-den-Berg to Paceco | 982.57 mi (1,581.29 km) |
| Heist-op-den-Berg to Pachino | 1,116.64 mi (1,797.06 km) |
