| Palm River-Clair Mel to Smolyan | 5,755.31 mi (9,262.27 km) |
| Palm River-Clair Mel to Sofia | 5,655.28 mi (9,101.29 km) |
| Palm River-Clair Mel to Sopot | 5,718.76 mi (9,203.45 km) |
| Palm River-Clair Mel to Sozopol | 5,853.96 mi (9,421.04 km) |
| Palm River-Clair Mel to Sredets | 5,835.19 mi (9,390.83 km) |
| Palm River-Clair Mel to Stamboliyski | 5,728.06 mi (9,218.42 km) |
| Palm River-Clair Mel to Stara Zagora | 5,765.55 mi (9,278.76 km) |
| Palm River-Clair Mel to Svilengrad | 5,814.06 mi (9,356.83 km) |
| Palm River-Clair Mel to Svishtov | 5,709.27 mi (9,188.18 km) |
| Palm River-Clair Mel to Targovishte | 5,775.10 mi (9,294.13 km) |
| Palm River-Clair Mel to Teteven | 5,688.23 mi (9,154.33 km) |
| Palm River-Clair Mel to Troyan | 5,708.86 mi (9,187.53 km) |
| Palm River-Clair Mel to Tryavna | 5,743.15 mi (9,242.70 km) |
| Palm River-Clair Mel to Tutrakan | 5,746.61 mi (9,248.28 km) |
| Palm River-Clair Mel to Varna | 5,832.53 mi (9,386.55 km) |
