| Tordesillas to Oerlinghausen | 967.31 mi (1,556.73 km) |
| Tordesillas to Oestrich-Winkel | 856.67 mi (1,378.67 km) |
| Tordesillas to Offenburg | 792.70 mi (1,275.73 km) |
| Tordesillas to Oftersheim | 851.88 mi (1,370.97 km) |
| Tordesillas to Ohrdruf | 987.43 mi (1,589.12 km) |
| Tordesillas to Ohringen | 879.99 mi (1,416.21 km) |
| Tordesillas to Olbernhau | 1,078.28 mi (1,735.32 km) |
| Tordesillas to Olching | 920.91 mi (1,482.06 km) |
| Tordesillas to Oldenburg | 1,011.62 mi (1,628.05 km) |
| Tordesillas to Oldenburg in Holstein | 1,145.00 mi (1,842.69 km) |
| Tordesillas to Olfen | 916.02 mi (1,474.19 km) |
| Tordesillas to Olpe | 896.49 mi (1,442.76 km) |
| Tordesillas to Olsberg | 932.82 mi (1,501.23 km) |
| Tordesillas to Oranienburg | 1,151.39 mi (1,852.98 km) |
| Tordesillas to Ortenberg | 908.66 mi (1,462.35 km) |
