| Heiligenhaus to Oria | 904.35 mi (1,455.40 km) |
| Heiligenhaus to Oristano | 792.27 mi (1,275.03 km) |
| Heiligenhaus to Orta Nova | 805.03 mi (1,295.57 km) |
| Heiligenhaus to Orte | 662.82 mi (1,066.70 km) |
| Heiligenhaus to Ortona | 711.39 mi (1,144.87 km) |
| Heiligenhaus to Orvieto | 641.20 mi (1,031.91 km) |
| Heiligenhaus to Orzinuovi | 430.80 mi (693.31 km) |
| Heiligenhaus to Osimo | 620.57 mi (998.71 km) |
| Heiligenhaus to Ospitaletto | 422.68 mi (680.24 km) |
| Heiligenhaus to Ostuni | 889.17 mi (1,430.98 km) |
| Heiligenhaus to Ottaviano | 806.80 mi (1,298.42 km) |
| Heiligenhaus to Ovada | 467.83 mi (752.90 km) |
| Heiligenhaus to Ozieri | 747.84 mi (1,203.54 km) |
| Heiligenhaus to Paceco | 960.55 mi (1,545.85 km) |
| Heiligenhaus to Pachino | 1,085.09 mi (1,746.28 km) |
