| Korschenbroich to Oria | 909.52 mi (1,463.73 km) |
| Korschenbroich to Oristano | 785.56 mi (1,264.23 km) |
| Korschenbroich to Orta Nova | 808.77 mi (1,301.58 km) |
| Korschenbroich to Orte | 662.99 mi (1,066.98 km) |
| Korschenbroich to Ortona | 714.40 mi (1,149.71 km) |
| Korschenbroich to Orvieto | 641.16 mi (1,031.85 km) |
| Korschenbroich to Orzinuovi | 429.23 mi (690.77 km) |
| Korschenbroich to Osimo | 623.43 mi (1,003.32 km) |
| Korschenbroich to Ospitaletto | 421.61 mi (678.51 km) |
| Korschenbroich to Ostuni | 894.49 mi (1,439.55 km) |
| Korschenbroich to Ottaviano | 808.61 mi (1,301.33 km) |
| Korschenbroich to Ovada | 462.73 mi (744.69 km) |
| Korschenbroich to Ozieri | 741.86 mi (1,193.92 km) |
| Korschenbroich to Paceco | 958.32 mi (1,542.27 km) |
| Korschenbroich to Pachino | 1,085.15 mi (1,746.37 km) |
