| Suffern to Smolyan | 4,803.70 mi (7,730.81 km) |
| Suffern to Sofia | 4,701.26 mi (7,565.94 km) |
| Suffern to Sopot | 4,761.15 mi (7,662.33 km) |
| Suffern to Sozopol | 4,889.61 mi (7,869.07 km) |
| Suffern to Sredets | 4,872.52 mi (7,841.56 km) |
| Suffern to Stamboliyski | 4,773.87 mi (7,682.80 km) |
| Suffern to Stara Zagora | 4,806.66 mi (7,735.56 km) |
| Suffern to Svilengrad | 4,857.18 mi (7,816.87 km) |
| Suffern to Svishtov | 4,745.01 mi (7,636.35 km) |
| Suffern to Targovishte | 4,809.53 mi (7,740.20 km) |
| Suffern to Teteven | 4,730.49 mi (7,612.98 km) |
| Suffern to Troyan | 4,750.09 mi (7,644.53 km) |
| Suffern to Tryavna | 4,782.37 mi (7,696.48 km) |
| Suffern to Tutrakan | 4,777.03 mi (7,687.89 km) |
| Suffern to Varna | 4,863.71 mi (7,827.39 km) |
