| Balaguer to Oerlinghausen | 794.03 mi (1,277.87 km) |
| Balaguer to Oestrich-Winkel | 663.70 mi (1,068.12 km) |
| Balaguer to Offenburg | 576.96 mi (928.52 km) |
| Balaguer to Oftersheim | 644.10 mi (1,036.57 km) |
| Balaguer to Ohrdruf | 782.38 mi (1,259.12 km) |
| Balaguer to Ohringen | 661.99 mi (1,065.36 km) |
| Balaguer to Olbernhau | 854.91 mi (1,375.85 km) |
| Balaguer to Olching | 677.06 mi (1,089.63 km) |
| Balaguer to Oldenburg | 856.28 mi (1,378.05 km) |
| Balaguer to Oldenburg in Holstein | 979.48 mi (1,576.33 km) |
| Balaguer to Olfen | 752.47 mi (1,210.98 km) |
| Balaguer to Olpe | 719.28 mi (1,157.58 km) |
| Balaguer to Olsberg | 753.53 mi (1,212.69 km) |
| Balaguer to Oranienburg | 952.94 mi (1,533.61 km) |
| Balaguer to Ortenberg | 710.80 mi (1,143.92 km) |
