| Algeciras to Orbetello | 989.93 mi (1,593.14 km) |
| Algeciras to Oria | 1,283.52 mi (2,065.62 km) |
| Algeciras to Oristano | 806.83 mi (1,298.47 km) |
| Algeciras to Orta Nova | 1,192.59 mi (1,919.29 km) |
| Algeciras to Orte | 1,046.76 mi (1,684.59 km) |
| Algeciras to Ortona | 1,142.71 mi (1,839.01 km) |
| Algeciras to Orvieto | 1,039.46 mi (1,672.85 km) |
| Algeciras to Orzinuovi | 1,025.97 mi (1,651.15 km) |
| Algeciras to Osimo | 1,122.76 mi (1,806.91 km) |
| Algeciras to Ospitaletto | 1,037.54 mi (1,669.76 km) |
| Algeciras to Ostuni | 1,282.75 mi (2,064.38 km) |
| Algeciras to Ottaviano | 1,123.34 mi (1,807.85 km) |
| Algeciras to Ovada | 944.56 mi (1,520.12 km) |
| Algeciras to Ozieri | 840.39 mi (1,352.48 km) |
| Algeciras to Paceco | 999.39 mi (1,608.36 km) |
