| Iisalmi to Smolyan | 1,522.21 mi (2,449.76 km) |
| Iisalmi to Sofia | 1,449.95 mi (2,333.46 km) |
| Iisalmi to Sopot | 1,448.47 mi (2,331.09 km) |
| Iisalmi to Sozopol | 1,461.47 mi (2,352.01 km) |
| Iisalmi to Sredets | 1,465.93 mi (2,359.19 km) |
| Iisalmi to Stamboliyski | 1,484.72 mi (2,389.43 km) |
| Iisalmi to Stara Zagora | 1,461.47 mi (2,352.00 km) |
| Iisalmi to Svilengrad | 1,506.76 mi (2,424.89 km) |
| Iisalmi to Svishtov | 1,380.32 mi (2,221.42 km) |
| Iisalmi to Targovishte | 1,403.95 mi (2,259.44 km) |
| Iisalmi to Teteven | 1,431.51 mi (2,303.79 km) |
| Iisalmi to Troyan | 1,432.47 mi (2,305.33 km) |
| Iisalmi to Tryavna | 1,431.79 mi (2,304.25 km) |
| Iisalmi to Tutrakan | 1,348.66 mi (2,170.46 km) |
| Iisalmi to Varna | 1,406.35 mi (2,263.30 km) |
