| Sigulda to Smolyan | 1,075.58 mi (1,730.98 km) |
| Sigulda to Sofia | 1,000.67 mi (1,610.42 km) |
| Sigulda to Sopot | 1,001.87 mi (1,612.35 km) |
| Sigulda to Sozopol | 1,025.56 mi (1,650.49 km) |
| Sigulda to Sredets | 1,027.72 mi (1,653.95 km) |
| Sigulda to Stamboliyski | 1,037.66 mi (1,669.95 km) |
| Sigulda to Stara Zagora | 1,017.41 mi (1,637.36 km) |
| Sigulda to Svilengrad | 1,064.52 mi (1,713.17 km) |
| Sigulda to Svishtov | 935.30 mi (1,505.21 km) |
| Sigulda to Targovishte | 963.31 mi (1,550.30 km) |
| Sigulda to Teteven | 983.78 mi (1,583.24 km) |
| Sigulda to Troyan | 985.76 mi (1,586.42 km) |
| Sigulda to Tryavna | 987.26 mi (1,588.84 km) |
| Sigulda to Tutrakan | 908.29 mi (1,461.76 km) |
| Sigulda to Varna | 971.86 mi (1,564.06 km) |
