| Trapani to Oerlinghausen | 981.61 mi (1,579.75 km) |
| Trapani to Oestrich-Winkel | 857.36 mi (1,379.79 km) |
| Trapani to Offenburg | 757.54 mi (1,219.14 km) |
| Trapani to Oftersheim | 808.33 mi (1,300.88 km) |
| Trapani to Ohrdruf | 889.41 mi (1,431.37 km) |
| Trapani to Ohringen | 787.05 mi (1,266.63 km) |
| Trapani to Olbernhau | 874.90 mi (1,408.01 km) |
| Trapani to Olching | 706.11 mi (1,136.37 km) |
| Trapani to Oldenburg | 1,065.14 mi (1,714.17 km) |
| Trapani to Oldenburg in Holstein | 1,127.64 mi (1,814.76 km) |
| Trapani to Olfen | 978.69 mi (1,575.05 km) |
| Trapani to Olpe | 926.81 mi (1,491.56 km) |
| Trapani to Olsberg | 941.86 mi (1,515.78 km) |
| Trapani to Oranienburg | 1,018.81 mi (1,639.62 km) |
| Trapani to Ortenberg | 869.30 mi (1,399.01 km) |
