| Sortland to Smolyan | 1,904.16 mi (3,064.44 km) |
| Sortland to Sofia | 1,819.14 mi (2,927.63 km) |
| Sortland to Sopot | 1,831.41 mi (2,947.36 km) |
| Sortland to Sozopol | 1,870.04 mi (3,009.55 km) |
| Sortland to Sredets | 1,870.34 mi (3,010.02 km) |
| Sortland to Stamboliyski | 1,865.37 mi (3,002.03 km) |
| Sortland to Stara Zagora | 1,852.54 mi (2,981.38 km) |
| Sortland to Svilengrad | 1,902.20 mi (3,061.30 km) |
| Sortland to Svishtov | 1,769.45 mi (2,847.65 km) |
| Sortland to Targovishte | 1,803.92 mi (2,903.14 km) |
| Sortland to Teteven | 1,809.96 mi (2,912.85 km) |
| Sortland to Troyan | 1,815.20 mi (2,921.29 km) |
| Sortland to Tryavna | 1,821.80 mi (2,931.90 km) |
| Sortland to Tutrakan | 1,749.65 mi (2,815.80 km) |
| Sortland to Varna | 1,817.52 mi (2,925.01 km) |
