| Bilbao to Oerlinghausen | 806.52 mi (1,297.97 km) |
| Bilbao to Oestrich-Winkel | 695.65 mi (1,119.53 km) |
| Bilbao to Offenburg | 633.45 mi (1,019.44 km) |
| Bilbao to Oftersheim | 691.60 mi (1,113.03 km) |
| Bilbao to Ohrdruf | 826.66 mi (1,330.38 km) |
| Bilbao to Ohringen | 720.53 mi (1,159.58 km) |
| Bilbao to Olbernhau | 918.71 mi (1,478.53 km) |
| Bilbao to Olching | 765.45 mi (1,231.87 km) |
| Bilbao to Oldenburg | 852.16 mi (1,371.41 km) |
| Bilbao to Oldenburg in Holstein | 985.02 mi (1,585.23 km) |
| Bilbao to Olfen | 755.63 mi (1,216.07 km) |
| Bilbao to Olpe | 735.47 mi (1,183.62 km) |
| Bilbao to Olsberg | 771.79 mi (1,242.07 km) |
| Bilbao to Oranienburg | 990.28 mi (1,593.70 km) |
| Bilbao to Ortenberg | 747.71 mi (1,203.33 km) |
