| Issaquah to Smolyan | 5,951.21 mi (9,577.54 km) |
| Issaquah to Sofia | 5,853.24 mi (9,419.88 km) |
| Issaquah to Sopot | 5,883.71 mi (9,468.92 km) |
| Issaquah to Sozopol | 5,952.24 mi (9,579.21 km) |
| Issaquah to Sredets | 5,947.81 mi (9,572.07 km) |
| Issaquah to Stamboliyski | 5,912.74 mi (9,515.64 km) |
| Issaquah to Stara Zagora | 5,914.43 mi (9,518.36 km) |
| Issaquah to Svilengrad | 5,967.54 mi (9,603.83 km) |
| Issaquah to Svishtov | 5,832.75 mi (9,386.91 km) |
| Issaquah to Targovishte | 5,878.62 mi (9,460.72 km) |
| Issaquah to Teteven | 5,857.47 mi (9,426.68 km) |
| Issaquah to Troyan | 5,868.12 mi (9,443.82 km) |
| Issaquah to Tryavna | 5,883.75 mi (9,468.98 km) |
| Issaquah to Tutrakan | 5,827.49 mi (9,378.43 km) |
| Issaquah to Varna | 5,903.99 mi (9,501.55 km) |
