| Lappeenranta to Smolyan | 1,354.09 mi (2,179.19 km) |
| Lappeenranta to Sofia | 1,284.94 mi (2,067.90 km) |
| Lappeenranta to Sopot | 1,280.45 mi (2,060.68 km) |
| Lappeenranta to Sozopol | 1,288.75 mi (2,074.04 km) |
| Lappeenranta to Sredets | 1,293.85 mi (2,082.25 km) |
| Lappeenranta to Stamboliyski | 1,317.02 mi (2,119.54 km) |
| Lappeenranta to Stara Zagora | 1,291.76 mi (2,078.89 km) |
| Lappeenranta to Svilengrad | 1,336.09 mi (2,150.22 km) |
| Lappeenranta to Svishtov | 1,211.32 mi (1,949.43 km) |
| Lappeenranta to Targovishte | 1,232.79 mi (1,983.99 km) |
| Lappeenranta to Teteven | 1,264.52 mi (2,035.04 km) |
| Lappeenranta to Troyan | 1,264.55 mi (2,035.10 km) |
| Lappeenranta to Tryavna | 1,262.40 mi (2,031.64 km) |
| Lappeenranta to Tutrakan | 1,177.50 mi (1,895.00 km) |
| Lappeenranta to Varna | 1,233.36 mi (1,984.91 km) |
