| Kauniainen to Smolyan | 1,287.44 mi (2,071.94 km) |
| Kauniainen to Sofia | 1,211.73 mi (1,950.08 km) |
| Kauniainen to Sopot | 1,213.74 mi (1,953.33 km) |
| Kauniainen to Sozopol | 1,236.21 mi (1,989.49 km) |
| Kauniainen to Sredets | 1,238.85 mi (1,993.74 km) |
| Kauniainen to Stamboliyski | 1,249.47 mi (2,010.83 km) |
| Kauniainen to Stara Zagora | 1,229.32 mi (1,978.40 km) |
| Kauniainen to Svilengrad | 1,276.29 mi (2,053.99 km) |
| Kauniainen to Svishtov | 1,147.24 mi (1,846.30 km) |
| Kauniainen to Targovishte | 1,174.84 mi (1,890.72 km) |
| Kauniainen to Teteven | 1,195.47 mi (1,923.93 km) |
| Kauniainen to Troyan | 1,197.62 mi (1,927.39 km) |
| Kauniainen to Tryavna | 1,199.19 mi (1,929.91 km) |
| Kauniainen to Tutrakan | 1,119.75 mi (1,802.06 km) |
| Kauniainen to Varna | 1,182.13 mi (1,902.45 km) |
