| Lifford to Smolyan | 1,719.22 mi (2,766.82 km) |
| Lifford to Sofia | 1,615.34 mi (2,599.63 km) |
| Lifford to Sopot | 1,671.49 mi (2,690.01 km) |
| Lifford to Sozopol | 1,795.31 mi (2,889.27 km) |
| Lifford to Sredets | 1,779.03 mi (2,863.08 km) |
| Lifford to Stamboliyski | 1,687.11 mi (2,715.14 km) |
| Lifford to Stara Zagora | 1,715.75 mi (2,761.23 km) |
| Lifford to Svilengrad | 1,767.49 mi (2,844.49 km) |
| Lifford to Svishtov | 1,651.12 mi (2,657.22 km) |
| Lifford to Targovishte | 1,714.92 mi (2,759.90 km) |
| Lifford to Teteven | 1,640.92 mi (2,640.81 km) |
| Lifford to Troyan | 1,659.60 mi (2,670.86 km) |
| Lifford to Tryavna | 1,690.31 mi (2,720.29 km) |
| Lifford to Tutrakan | 1,681.37 mi (2,705.90 km) |
| Lifford to Varna | 1,768.11 mi (2,845.50 km) |
