| Notodden to Smolyan | 1,412.27 mi (2,272.83 km) |
| Notodden to Sofia | 1,314.11 mi (2,114.85 km) |
| Notodden to Sopot | 1,345.64 mi (2,165.59 km) |
| Notodden to Sozopol | 1,425.04 mi (2,293.39 km) |
| Notodden to Sredets | 1,417.65 mi (2,281.49 km) |
| Notodden to Stamboliyski | 1,373.93 mi (2,211.13 km) |
| Notodden to Stara Zagora | 1,378.21 mi (2,218.01 km) |
| Notodden to Svilengrad | 1,431.84 mi (2,304.33 km) |
| Notodden to Svishtov | 1,297.83 mi (2,088.66 km) |
| Notodden to Targovishte | 1,348.05 mi (2,169.48 km) |
| Notodden to Teteven | 1,318.87 mi (2,122.52 km) |
| Notodden to Troyan | 1,330.23 mi (2,140.80 km) |
| Notodden to Tryavna | 1,347.83 mi (2,169.13 km) |
| Notodden to Tutrakan | 1,299.77 mi (2,091.78 km) |
| Notodden to Varna | 1,381.22 mi (2,222.86 km) |
