| Pia to Smolyan | 1,115.17 mi (1,794.70 km) |
| Pia to Sofia | 1,033.43 mi (1,663.14 km) |
| Pia to Sopot | 1,105.40 mi (1,778.97 km) |
| Pia to Sozopol | 1,256.30 mi (2,021.83 km) |
| Pia to Sredets | 1,231.90 mi (1,982.55 km) |
| Pia to Stamboliyski | 1,099.83 mi (1,770.01 km) |
| Pia to Stara Zagora | 1,152.89 mi (1,855.40 km) |
| Pia to Svilengrad | 1,188.63 mi (1,912.91 km) |
| Pia to Svishtov | 1,128.21 mi (1,815.68 km) |
| Pia to Targovishte | 1,192.27 mi (1,918.77 km) |
| Pia to Teteven | 1,078.76 mi (1,736.10 km) |
| Pia to Troyan | 1,101.65 mi (1,772.94 km) |
| Pia to Tryavna | 1,141.15 mi (1,836.50 km) |
| Pia to Tutrakan | 1,188.92 mi (1,913.38 km) |
| Pia to Varna | 1,259.19 mi (2,026.47 km) |
