| Bellevue to Smolyan | 1,191.11 mi (1,916.90 km) |
| Bellevue to Sofia | 1,090.99 mi (1,755.79 km) |
| Bellevue to Sopot | 1,155.26 mi (1,859.22 km) |
| Bellevue to Sozopol | 1,294.26 mi (2,082.91 km) |
| Bellevue to Sredets | 1,274.19 mi (2,050.61 km) |
| Bellevue to Stamboliyski | 1,163.76 mi (1,872.89 km) |
| Bellevue to Stara Zagora | 1,202.49 mi (1,935.22 km) |
| Bellevue to Svilengrad | 1,250.15 mi (2,011.92 km) |
| Bellevue to Svishtov | 1,150.63 mi (1,851.76 km) |
| Bellevue to Targovishte | 1,217.29 mi (1,959.05 km) |
| Bellevue to Teteven | 1,124.87 mi (1,810.31 km) |
| Bellevue to Troyan | 1,145.92 mi (1,844.18 km) |
| Bellevue to Tryavna | 1,181.25 mi (1,901.04 km) |
| Bellevue to Tutrakan | 1,194.67 mi (1,922.63 km) |
| Bellevue to Varna | 1,278.22 mi (2,057.09 km) |
