| Scottsbluff to Smolyan | 5,832.69 mi (9,386.80 km) |
| Scottsbluff to Sofia | 5,728.94 mi (9,219.84 km) |
| Scottsbluff to Sopot | 5,774.52 mi (9,293.19 km) |
| Scottsbluff to Sozopol | 5,873.96 mi (9,453.22 km) |
| Scottsbluff to Sredets | 5,863.39 mi (9,436.22 km) |
| Scottsbluff to Stamboliyski | 5,796.90 mi (9,329.21 km) |
| Scottsbluff to Stara Zagora | 5,813.40 mi (9,355.77 km) |
| Scottsbluff to Svilengrad | 5,867.29 mi (9,442.49 km) |
| Scottsbluff to Svishtov | 5,738.05 mi (9,234.50 km) |
| Scottsbluff to Targovishte | 5,794.46 mi (9,325.29 km) |
| Scottsbluff to Teteven | 5,745.19 mi (9,245.99 km) |
| Scottsbluff to Troyan | 5,760.48 mi (9,270.60 km) |
| Scottsbluff to Tryavna | 5,784.58 mi (9,309.38 km) |
| Scottsbluff to Tutrakan | 5,750.07 mi (9,253.85 km) |
| Scottsbluff to Varna | 5,834.33 mi (9,389.45 km) |
