| Birkirkara to Smolyan | 676.55 mi (1,088.81 km) |
| Birkirkara to Sofia | 666.92 mi (1,073.31 km) |
| Birkirkara to Sopot | 720.50 mi (1,159.53 km) |
| Birkirkara to Sozopol | 838.70 mi (1,349.75 km) |
| Birkirkara to Sredets | 814.08 mi (1,310.13 km) |
| Birkirkara to Stamboliyski | 690.52 mi (1,111.29 km) |
| Birkirkara to Stara Zagora | 749.35 mi (1,205.97 km) |
| Birkirkara to Svilengrad | 749.68 mi (1,206.49 km) |
| Birkirkara to Svishtov | 785.48 mi (1,264.11 km) |
| Birkirkara to Targovishte | 820.03 mi (1,319.72 km) |
| Birkirkara to Teteven | 712.67 mi (1,146.94 km) |
| Birkirkara to Troyan | 728.97 mi (1,173.16 km) |
| Birkirkara to Tryavna | 760.04 mi (1,223.16 km) |
| Birkirkara to Tutrakan | 853.64 mi (1,373.80 km) |
| Birkirkara to Varna | 875.43 mi (1,408.87 km) |
