| Roswell to Smolyan | 5,545.36 mi (8,924.39 km) |
| Roswell to Sofia | 5,442.91 mi (8,759.52 km) |
| Roswell to Sopot | 5,502.72 mi (8,855.77 km) |
| Roswell to Sozopol | 5,630.79 mi (9,061.87 km) |
| Roswell to Sredets | 5,613.82 mi (9,034.57 km) |
| Roswell to Stamboliyski | 5,515.51 mi (8,876.36 km) |
| Roswell to Stara Zagora | 5,548.17 mi (8,928.92 km) |
| Roswell to Svilengrad | 5,598.76 mi (9,010.33 km) |
| Roswell to Svishtov | 5,486.24 mi (8,829.24 km) |
| Roswell to Targovishte | 5,550.64 mi (8,932.89 km) |
| Roswell to Teteven | 5,472.06 mi (8,806.43 km) |
| Roswell to Troyan | 5,491.62 mi (8,837.92 km) |
| Roswell to Tryavna | 5,523.81 mi (8,889.71 km) |
| Roswell to Tutrakan | 5,517.75 mi (8,879.96 km) |
| Roswell to Varna | 5,604.47 mi (9,019.53 km) |
