| Zella-Mehlis to Oria | 777.79 mi (1,251.73 km) |
| Zella-Mehlis to Oristano | 749.76 mi (1,206.62 km) |
| Zella-Mehlis to Orta Nova | 688.13 mi (1,107.44 km) |
| Zella-Mehlis to Orte | 572.34 mi (921.09 km) |
| Zella-Mehlis to Ortona | 600.76 mi (966.83 km) |
| Zella-Mehlis to Orvieto | 552.92 mi (889.83 km) |
| Zella-Mehlis to Orzinuovi | 364.98 mi (587.38 km) |
| Zella-Mehlis to Osimo | 513.15 mi (825.83 km) |
| Zella-Mehlis to Ospitaletto | 353.74 mi (569.29 km) |
| Zella-Mehlis to Ostuni | 761.95 mi (1,226.24 km) |
| Zella-Mehlis to Ottaviano | 701.99 mi (1,129.74 km) |
| Zella-Mehlis to Ovada | 426.43 mi (686.27 km) |
| Zella-Mehlis to Ozieri | 700.68 mi (1,127.63 km) |
| Zella-Mehlis to Paceco | 880.71 mi (1,417.36 km) |
| Zella-Mehlis to Pachino | 988.04 mi (1,590.09 km) |
