| Madisonville to Smolyan | 5,510.58 mi (8,868.42 km) |
| Madisonville to Sofia | 5,406.97 mi (8,701.67 km) |
| Madisonville to Sopot | 5,463.64 mi (8,792.87 km) |
| Madisonville to Sozopol | 5,585.50 mi (8,989.00 km) |
| Madisonville to Sredets | 5,570.01 mi (8,964.07 km) |
| Madisonville to Stamboliyski | 5,478.97 mi (8,817.55 km) |
| Madisonville to Stara Zagora | 5,507.79 mi (8,863.93 km) |
| Madisonville to Svilengrad | 5,559.62 mi (8,947.35 km) |
| Madisonville to Svishtov | 5,441.96 mi (8,757.98 km) |
| Madisonville to Targovishte | 5,504.87 mi (8,859.23 km) |
| Madisonville to Teteven | 5,433.06 mi (8,743.67 km) |
| Madisonville to Troyan | 5,451.70 mi (8,773.67 km) |
| Madisonville to Tryavna | 5,482.10 mi (8,822.58 km) |
| Madisonville to Tutrakan | 5,468.82 mi (8,801.21 km) |
| Madisonville to Varna | 5,555.63 mi (8,940.93 km) |
