| Burgdorf to Smolyan | 1,017.29 mi (1,637.18 km) |
| Burgdorf to Sofia | 913.33 mi (1,469.86 km) |
| Burgdorf to Sopot | 961.45 mi (1,547.30 km) |
| Burgdorf to Sozopol | 1,073.95 mi (1,728.36 km) |
| Burgdorf to Sredets | 1,059.80 mi (1,705.58 km) |
| Burgdorf to Stamboliyski | 982.06 mi (1,580.47 km) |
| Burgdorf to Stara Zagora | 1,002.62 mi (1,613.57 km) |
| Burgdorf to Svilengrad | 1,055.95 mi (1,699.38 km) |
| Burgdorf to Svishtov | 931.97 mi (1,499.87 km) |
| Burgdorf to Targovishte | 993.23 mi (1,598.45 km) |
| Burgdorf to Teteven | 931.57 mi (1,499.21 km) |
| Burgdorf to Troyan | 948.09 mi (1,525.80 km) |
| Burgdorf to Tryavna | 975.12 mi (1,569.30 km) |
| Burgdorf to Tutrakan | 955.75 mi (1,538.13 km) |
| Burgdorf to Varna | 1,042.53 mi (1,677.79 km) |
