| San Juan de Aznalfarache to Oerlinghausen | 1,235.19 mi (1,987.84 km) |
| San Juan de Aznalfarache to Oestrich-Winkel | 1,115.26 mi (1,794.83 km) |
| San Juan de Aznalfarache to Offenburg | 1,039.08 mi (1,672.24 km) |
| San Juan de Aznalfarache to Oftersheim | 1,103.23 mi (1,775.48 km) |
| San Juan de Aznalfarache to Ohrdruf | 1,241.47 mi (1,997.96 km) |
| San Juan de Aznalfarache to Ohringen | 1,126.01 mi (1,812.13 km) |
| San Juan de Aznalfarache to Olbernhau | 1,322.41 mi (2,128.21 km) |
| San Juan de Aznalfarache to Olching | 1,149.73 mi (1,850.32 km) |
| San Juan de Aznalfarache to Oldenburg | 1,286.01 mi (2,069.63 km) |
| San Juan de Aznalfarache to Oldenburg in Holstein | 1,417.05 mi (2,280.53 km) |
| San Juan de Aznalfarache to Olfen | 1,186.85 mi (1,910.04 km) |
| San Juan de Aznalfarache to Olpe | 1,162.15 mi (1,870.29 km) |
| San Juan de Aznalfarache to Olsberg | 1,198.05 mi (1,928.07 km) |
| San Juan de Aznalfarache to Oranienburg | 1,409.89 mi (2,268.99 km) |
| San Juan de Aznalfarache to Ortenberg | 1,165.55 mi (1,875.78 km) |
