| Monticello to Smolyan | 5,337.42 mi (8,589.75 km) |
| Monticello to Sofia | 5,233.22 mi (8,422.05 km) |
| Monticello to Sopot | 5,282.09 mi (8,500.71 km) |
| Monticello to Sozopol | 5,388.47 mi (8,671.90 km) |
| Monticello to Sredets | 5,376.41 mi (8,652.50 km) |
| Monticello to Stamboliyski | 5,302.62 mi (8,533.74 km) |
| Monticello to Stara Zagora | 5,322.65 mi (8,565.98 km) |
| Monticello to Svilengrad | 5,376.22 mi (8,652.19 km) |
| Monticello to Svishtov | 5,249.65 mi (8,448.50 km) |
| Monticello to Targovishte | 5,308.24 mi (8,542.78 km) |
| Monticello to Teteven | 5,252.27 mi (8,452.71 km) |
| Monticello to Troyan | 5,268.58 mi (8,478.96 km) |
| Monticello to Tryavna | 5,294.58 mi (8,520.80 km) |
| Monticello to Tutrakan | 5,266.08 mi (8,474.94 km) |
| Monticello to Varna | 5,351.54 mi (8,612.46 km) |
