| Solothurn to Buhusi | 902.33 mi (1,452.16 km) |
| Solothurn to Bumbesti-Jiu | 769.49 mi (1,238.37 km) |
| Solothurn to Busteni | 866.22 mi (1,394.04 km) |
| Solothurn to Buzau | 931.12 mi (1,498.49 km) |
| Solothurn to Cajvana | 859.84 mi (1,383.79 km) |
| Solothurn to Calafat | 776.83 mi (1,250.18 km) |
| Solothurn to Calan | 742.15 mi (1,194.38 km) |
| Solothurn to Calarasi | 974.96 mi (1,569.04 km) |
| Solothurn to Campia Turzii | 771.93 mi (1,242.31 km) |
| Solothurn to Campina | 880.87 mi (1,417.62 km) |
| Solothurn to Campulung | 845.78 mi (1,361.16 km) |
| Solothurn to Campulung Moldovenesc | 841.47 mi (1,354.22 km) |
| Solothurn to Caracal | 837.89 mi (1,348.45 km) |
| Solothurn to Caransebes | 710.70 mi (1,143.76 km) |
| Solothurn to Carei | 697.41 mi (1,122.37 km) |
