| Pearl River to Smolyan | 4,800.27 mi (7,725.28 km) |
| Pearl River to Sofia | 4,697.87 mi (7,560.48 km) |
| Pearl River to Sopot | 4,757.83 mi (7,656.99 km) |
| Pearl River to Sozopol | 4,886.45 mi (7,863.99 km) |
| Pearl River to Sredets | 4,869.32 mi (7,836.42 km) |
| Pearl River to Stamboliyski | 4,770.48 mi (7,677.35 km) |
| Pearl River to Stara Zagora | 4,803.37 mi (7,730.28 km) |
| Pearl River to Svilengrad | 4,853.86 mi (7,811.53 km) |
| Pearl River to Svishtov | 4,741.84 mi (7,631.25 km) |
| Pearl River to Targovishte | 4,806.40 mi (7,735.15 km) |
| Pearl River to Teteven | 4,727.17 mi (7,607.65 km) |
| Pearl River to Troyan | 4,746.80 mi (7,639.24 km) |
| Pearl River to Tryavna | 4,779.13 mi (7,691.26 km) |
| Pearl River to Tutrakan | 4,773.98 mi (7,682.98 km) |
| Pearl River to Varna | 4,860.65 mi (7,822.46 km) |
