| Burien to Smolyan | 5,961.06 mi (9,593.40 km) |
| Burien to Sofia | 5,863.19 mi (9,435.89 km) |
| Burien to Sopot | 5,893.49 mi (9,484.65 km) |
| Burien to Sozopol | 5,961.65 mi (9,594.34 km) |
| Burien to Sredets | 5,957.28 mi (9,587.32 km) |
| Burien to Stamboliyski | 5,922.58 mi (9,531.47 km) |
| Burien to Stara Zagora | 5,924.10 mi (9,533.93 km) |
| Burien to Svilengrad | 5,977.19 mi (9,619.35 km) |
| Burien to Svishtov | 5,842.38 mi (9,402.41 km) |
| Burien to Targovishte | 5,888.12 mi (9,476.01 km) |
| Burien to Teteven | 5,867.28 mi (9,442.48 km) |
| Burien to Troyan | 5,877.88 mi (9,459.53 km) |
| Burien to Tryavna | 5,893.41 mi (9,484.53 km) |
| Burien to Tutrakan | 5,836.93 mi (9,393.62 km) |
| Burien to Varna | 5,913.32 mi (9,516.56 km) |
