| Zafferana Etnea to Oerlinghausen | 1,035.01 mi (1,665.68 km) |
| Zafferana Etnea to Oestrich-Winkel | 920.59 mi (1,481.55 km) |
| Zafferana Etnea to Offenburg | 827.32 mi (1,331.45 km) |
| Zafferana Etnea to Oftersheim | 870.16 mi (1,400.39 km) |
| Zafferana Etnea to Ohrdruf | 933.15 mi (1,501.76 km) |
| Zafferana Etnea to Ohringen | 843.26 mi (1,357.10 km) |
| Zafferana Etnea to Olbernhau | 901.26 mi (1,450.43 km) |
| Zafferana Etnea to Olching | 751.16 mi (1,208.87 km) |
| Zafferana Etnea to Oldenburg | 1,117.95 mi (1,799.16 km) |
| Zafferana Etnea to Oldenburg in Holstein | 1,165.28 mi (1,875.34 km) |
| Zafferana Etnea to Olfen | 1,039.63 mi (1,673.12 km) |
| Zafferana Etnea to Olpe | 987.55 mi (1,589.31 km) |
| Zafferana Etnea to Olsberg | 997.95 mi (1,606.04 km) |
| Zafferana Etnea to Oranienburg | 1,045.16 mi (1,682.02 km) |
| Zafferana Etnea to Ortenberg | 924.88 mi (1,488.45 km) |
