| Sammamish to Smolyan | 5,947.46 mi (9,571.51 km) |
| Sammamish to Sofia | 5,849.51 mi (9,413.88 km) |
| Sammamish to Sopot | 5,879.96 mi (9,462.88 km) |
| Sammamish to Sozopol | 5,948.44 mi (9,573.09 km) |
| Sammamish to Sredets | 5,944.01 mi (9,565.96 km) |
| Sammamish to Stamboliyski | 5,908.99 mi (9,509.60 km) |
| Sammamish to Stara Zagora | 5,910.66 mi (9,512.29 km) |
| Sammamish to Svilengrad | 5,963.77 mi (9,597.76 km) |
| Sammamish to Svishtov | 5,828.98 mi (9,380.83 km) |
| Sammamish to Targovishte | 5,874.83 mi (9,454.62 km) |
| Sammamish to Teteven | 5,853.72 mi (9,420.65 km) |
| Sammamish to Troyan | 5,864.36 mi (9,437.78 km) |
| Sammamish to Tryavna | 5,879.98 mi (9,462.91 km) |
| Sammamish to Tutrakan | 5,823.69 mi (9,372.32 km) |
| Sammamish to Varna | 5,900.18 mi (9,495.42 km) |
