| Perivale to Smolyan | 1,363.28 mi (2,193.98 km) |
| Perivale to Sofia | 1,260.47 mi (2,028.53 km) |
| Perivale to Sopot | 1,320.33 mi (2,124.86 km) |
| Perivale to Sozopol | 1,451.49 mi (2,335.95 km) |
| Perivale to Sredets | 1,433.42 mi (2,306.87 km) |
| Perivale to Stamboliyski | 1,333.01 mi (2,145.27 km) |
| Perivale to Stara Zagora | 1,366.10 mi (2,198.52 km) |
| Perivale to Svilengrad | 1,416.32 mi (2,279.34 km) |
| Perivale to Svishtov | 1,306.70 mi (2,102.93 km) |
| Perivale to Targovishte | 1,372.19 mi (2,208.32 km) |
| Perivale to Teteven | 1,289.67 mi (2,075.52 km) |
| Perivale to Troyan | 1,309.46 mi (2,107.37 km) |
| Perivale to Tryavna | 1,342.35 mi (2,160.30 km) |
| Perivale to Tutrakan | 1,343.38 mi (2,161.96 km) |
| Perivale to Varna | 1,429.23 mi (2,300.13 km) |
