| Morristown to Smolyan | 5,398.97 mi (8,688.80 km) |
| Morristown to Sofia | 5,296.20 mi (8,523.41 km) |
| Morristown to Sopot | 5,355.32 mi (8,618.55 km) |
| Morristown to Sozopol | 5,482.07 mi (8,822.54 km) |
| Morristown to Sredets | 5,465.42 mi (8,795.74 km) |
| Morristown to Stamboliyski | 5,368.70 mi (8,640.09 km) |
| Morristown to Stara Zagora | 5,400.50 mi (8,691.27 km) |
| Morristown to Svilengrad | 5,451.39 mi (8,773.16 km) |
| Morristown to Svishtov | 5,337.67 mi (8,590.15 km) |
| Morristown to Targovishte | 5,401.78 mi (8,693.32 km) |
| Morristown to Teteven | 5,324.66 mi (8,569.22 km) |
| Morristown to Troyan | 5,344.03 mi (8,600.38 km) |
| Morristown to Tryavna | 5,375.83 mi (8,651.56 km) |
| Morristown to Tutrakan | 5,368.20 mi (8,639.29 km) |
| Morristown to Varna | 5,454.99 mi (8,778.95 km) |
