| Pierre to Smolyan | 5,592.91 mi (9,000.92 km) |
| Pierre to Sofia | 5,489.09 mi (8,833.83 km) |
| Pierre to Sopot | 5,535.10 mi (8,907.88 km) |
| Pierre to Sozopol | 5,635.57 mi (9,069.57 km) |
| Pierre to Sredets | 5,624.77 mi (9,052.19 km) |
| Pierre to Stamboliyski | 5,557.24 mi (8,943.51 km) |
| Pierre to Stara Zagora | 5,574.22 mi (8,970.84 km) |
| Pierre to Svilengrad | 5,628.08 mi (9,057.52 km) |
| Pierre to Svishtov | 5,499.19 mi (8,850.09 km) |
| Pierre to Targovishte | 5,555.94 mi (8,941.42 km) |
| Pierre to Teteven | 5,505.70 mi (8,860.56 km) |
| Pierre to Troyan | 5,521.13 mi (8,885.40 km) |
| Pierre to Tryavna | 5,545.49 mi (8,924.61 km) |
| Pierre to Tutrakan | 5,511.88 mi (8,870.52 km) |
| Pierre to Varna | 5,596.35 mi (9,006.46 km) |
