| Cuellar to Orbetello | 800.30 mi (1,287.96 km) |
| Cuellar to Oria | 1,143.92 mi (1,840.95 km) |
| Cuellar to Oristano | 683.65 mi (1,100.23 km) |
| Cuellar to Orta Nova | 1,036.08 mi (1,667.41 km) |
| Cuellar to Orte | 860.12 mi (1,384.23 km) |
| Cuellar to Ortona | 963.03 mi (1,549.85 km) |
| Cuellar to Orvieto | 846.06 mi (1,361.61 km) |
| Cuellar to Orzinuovi | 765.42 mi (1,231.82 km) |
| Cuellar to Osimo | 916.94 mi (1,475.68 km) |
| Cuellar to Ospitaletto | 774.95 mi (1,247.16 km) |
| Cuellar to Ostuni | 1,138.55 mi (1,832.33 km) |
| Cuellar to Ottaviano | 976.82 mi (1,572.05 km) |
| Cuellar to Ovada | 690.94 mi (1,111.96 km) |
| Cuellar to Ozieri | 696.08 mi (1,120.24 km) |
| Cuellar to Paceco | 925.47 mi (1,489.41 km) |
