| Seagoville to Smolyan | 6,093.93 mi (9,807.24 km) |
| Seagoville to Sofia | 5,989.92 mi (9,639.84 km) |
| Seagoville to Sopot | 6,044.64 mi (9,727.91 km) |
| Seagoville to Sozopol | 6,162.39 mi (9,917.41 km) |
| Seagoville to Sredets | 6,147.87 mi (9,894.05 km) |
| Seagoville to Stamboliyski | 6,061.41 mi (9,754.90 km) |
| Seagoville to Stara Zagora | 6,087.92 mi (9,797.55 km) |
| Seagoville to Svilengrad | 6,140.36 mi (9,881.95 km) |
| Seagoville to Svishtov | 6,019.87 mi (9,688.04 km) |
| Seagoville to Targovishte | 6,081.67 mi (9,787.50 km) |
| Seagoville to Teteven | 6,014.20 mi (9,678.92 km) |
| Seagoville to Troyan | 6,032.25 mi (9,707.96 km) |
| Seagoville to Tryavna | 6,061.49 mi (9,755.02 km) |
| Seagoville to Tutrakan | 6,043.67 mi (9,726.35 km) |
| Seagoville to Varna | 6,130.29 mi (9,865.75 km) |
