| Rothrist to Smolyan | 916.34 mi (1,474.70 km) |
| Rothrist to Sofia | 817.12 mi (1,315.02 km) |
| Rothrist to Sopot | 882.61 mi (1,420.43 km) |
| Rothrist to Sozopol | 1,024.19 mi (1,648.27 km) |
| Rothrist to Sredets | 1,003.35 mi (1,614.73 km) |
| Rothrist to Stamboliyski | 889.76 mi (1,431.94 km) |
| Rothrist to Stara Zagora | 930.21 mi (1,497.02 km) |
| Rothrist to Svilengrad | 976.86 mi (1,572.10 km) |
| Rothrist to Svishtov | 881.79 mi (1,419.11 km) |
| Rothrist to Targovishte | 948.65 mi (1,526.70 km) |
| Rothrist to Teteven | 852.43 mi (1,371.85 km) |
| Rothrist to Troyan | 873.86 mi (1,406.35 km) |
| Rothrist to Tryavna | 910.01 mi (1,464.52 km) |
| Rothrist to Tutrakan | 929.39 mi (1,495.70 km) |
| Rothrist to Varna | 1,011.17 mi (1,627.32 km) |
