| Solothurn to Bicaz | 871.62 mi (1,402.74 km) |
| Solothurn to Bistrita | 795.32 mi (1,279.95 km) |
| Solothurn to Blaj | 778.17 mi (1,252.34 km) |
| Solothurn to Bocsa | 687.66 mi (1,106.68 km) |
| Solothurn to Boldesti-Scaeni | 896.38 mi (1,442.58 km) |
| Solothurn to Bolintin Vale | 895.74 mi (1,441.56 km) |
| Solothurn to Borsa | 799.51 mi (1,286.69 km) |
| Solothurn to Botosani | 892.02 mi (1,435.57 km) |
| Solothurn to Brad | 726.02 mi (1,168.42 km) |
| Solothurn to Bragadiru | 907.62 mi (1,460.67 km) |
| Solothurn to Braila | 982.32 mi (1,580.89 km) |
| Solothurn to Brasov | 865.63 mi (1,393.10 km) |
| Solothurn to Breaza | 876.15 mi (1,410.02 km) |
| Solothurn to Bucharest | 912.26 mi (1,468.15 km) |
| Solothurn to Buftea | 902.06 mi (1,451.73 km) |
