| Sarpsborg to Smolyan | 1,355.44 mi (2,181.37 km) |
| Sarpsborg to Sofia | 1,258.52 mi (2,025.40 km) |
| Sarpsborg to Sopot | 1,287.82 mi (2,072.55 km) |
| Sarpsborg to Sozopol | 1,363.41 mi (2,194.19 km) |
| Sarpsborg to Sredets | 1,356.69 mi (2,183.38 km) |
| Sarpsborg to Stamboliyski | 1,316.90 mi (2,119.34 km) |
| Sarpsborg to Stara Zagora | 1,319.26 mi (2,123.14 km) |
| Sarpsborg to Svilengrad | 1,372.68 mi (2,209.11 km) |
| Sarpsborg to Svishtov | 1,238.26 mi (1,992.78 km) |
| Sarpsborg to Targovishte | 1,287.12 mi (2,071.41 km) |
| Sarpsborg to Teteven | 1,261.57 mi (2,030.29 km) |
| Sarpsborg to Troyan | 1,272.26 mi (2,047.51 km) |
| Sarpsborg to Tryavna | 1,288.72 mi (2,074.00 km) |
| Sarpsborg to Tutrakan | 1,238.07 mi (1,992.49 km) |
| Sarpsborg to Varna | 1,318.67 mi (2,122.19 km) |
