| Huittinen to Smolyan | 1,356.25 mi (2,182.67 km) |
| Huittinen to Sofia | 1,276.77 mi (2,054.76 km) |
| Huittinen to Sopot | 1,282.78 mi (2,064.43 km) |
| Huittinen to Sozopol | 1,312.64 mi (2,112.50 km) |
| Huittinen to Sredets | 1,314.09 mi (2,114.82 km) |
| Huittinen to Stamboliyski | 1,317.87 mi (2,120.91 km) |
| Huittinen to Stara Zagora | 1,300.72 mi (2,093.31 km) |
| Huittinen to Svilengrad | 1,348.95 mi (2,170.93 km) |
| Huittinen to Svishtov | 1,218.05 mi (1,960.26 km) |
| Huittinen to Targovishte | 1,248.83 mi (2,009.79 km) |
| Huittinen to Teteven | 1,263.19 mi (2,032.91 km) |
| Huittinen to Troyan | 1,266.59 mi (2,038.38 km) |
| Huittinen to Tryavna | 1,270.27 mi (2,044.31 km) |
| Huittinen to Tutrakan | 1,194.06 mi (1,921.65 km) |
| Huittinen to Varna | 1,259.35 mi (2,026.73 km) |
