| Beaverton to Smolyan | 6,096.50 mi (9,811.37 km) |
| Beaverton to Sofia | 5,998.31 mi (9,653.35 km) |
| Beaverton to Sopot | 6,029.19 mi (9,703.05 km) |
| Beaverton to Sozopol | 6,098.43 mi (9,814.48 km) |
| Beaverton to Sredets | 6,093.88 mi (9,807.15 km) |
| Beaverton to Stamboliyski | 6,058.08 mi (9,749.53 km) |
| Beaverton to Stara Zagora | 6,060.12 mi (9,752.83 km) |
| Beaverton to Svilengrad | 6,113.29 mi (9,838.38 km) |
| Beaverton to Svishtov | 5,978.53 mi (9,621.52 km) |
| Beaverton to Targovishte | 6,024.65 mi (9,695.74 km) |
| Beaverton to Teteven | 6,002.85 mi (9,660.66 km) |
| Beaverton to Troyan | 6,013.62 mi (9,677.99 km) |
| Beaverton to Tryavna | 6,029.46 mi (9,703.48 km) |
| Beaverton to Tutrakan | 5,973.62 mi (9,613.62 km) |
| Beaverton to Varna | 6,050.32 mi (9,737.04 km) |
