| Barth to Smolyan | 1,039.59 mi (1,673.05 km) |
| Barth to Sofia | 938.75 mi (1,510.76 km) |
| Barth to Sopot | 976.23 mi (1,571.09 km) |
| Barth to Sozopol | 1,069.83 mi (1,721.73 km) |
| Barth to Sredets | 1,059.43 mi (1,704.98 km) |
| Barth to Stamboliyski | 1,002.03 mi (1,612.61 km) |
| Barth to Stara Zagora | 1,012.35 mi (1,629.22 km) |
| Barth to Svilengrad | 1,066.35 mi (1,716.13 km) |
| Barth to Svishtov | 934.98 mi (1,504.70 km) |
| Barth to Targovishte | 990.37 mi (1,593.85 km) |
| Barth to Teteven | 948.09 mi (1,525.80 km) |
| Barth to Troyan | 961.43 mi (1,547.27 km) |
| Barth to Tryavna | 982.80 mi (1,581.66 km) |
| Barth to Tutrakan | 946.21 mi (1,522.78 km) |
| Barth to Varna | 1,031.11 mi (1,659.40 km) |
