| Obernburg am Main to Oria | 765.42 mi (1,231.83 km) |
| Obernburg am Main to Oristano | 686.91 mi (1,105.47 km) |
| Obernburg am Main to Orta Nova | 667.66 mi (1,074.49 km) |
| Obernburg am Main to Orte | 532.88 mi (857.59 km) |
| Obernburg am Main to Ortona | 575.23 mi (925.75 km) |
| Obernburg am Main to Orvieto | 511.97 mi (823.93 km) |
| Obernburg am Main to Orzinuovi | 308.98 mi (497.25 km) |
| Obernburg am Main to Osimo | 484.86 mi (780.31 km) |
| Obernburg am Main to Ospitaletto | 299.19 mi (481.50 km) |
| Obernburg am Main to Ostuni | 750.14 mi (1,207.24 km) |
| Obernburg am Main to Ottaviano | 672.60 mi (1,082.44 km) |
| Obernburg am Main to Ovada | 360.09 mi (579.50 km) |
| Obernburg am Main to Ozieri | 639.50 mi (1,029.18 km) |
| Obernburg am Main to Paceco | 836.37 mi (1,346.00 km) |
| Obernburg am Main to Pachino | 954.21 mi (1,535.66 km) |
