| s-Heerenberg to Orbetello | 692.12 mi (1,113.85 km) |
| s-Heerenberg to Oria | 953.87 mi (1,535.11 km) |
| s-Heerenberg to Oristano | 834.63 mi (1,343.21 km) |
| s-Heerenberg to Orta Nova | 854.44 mi (1,375.09 km) |
| s-Heerenberg to Orte | 711.04 mi (1,144.30 km) |
| s-Heerenberg to Ortona | 760.66 mi (1,224.16 km) |
| s-Heerenberg to Orvieto | 689.31 mi (1,109.33 km) |
| s-Heerenberg to Orzinuovi | 477.94 mi (769.17 km) |
| s-Heerenberg to Osimo | 669.79 mi (1,077.93 km) |
| s-Heerenberg to Ospitaletto | 470.14 mi (756.62 km) |
| s-Heerenberg to Ostuni | 938.69 mi (1,510.68 km) |
| s-Heerenberg to Ottaviano | 855.73 mi (1,377.17 km) |
| s-Heerenberg to Ovada | 512.01 mi (824.01 km) |
| s-Heerenberg to Ozieri | 791.07 mi (1,273.10 km) |
| s-Heerenberg to Paceco | 1,007.29 mi (1,621.08 km) |
