| Coos Bay to Smolyan | 6,257.32 mi (10,070.19 km) |
| Coos Bay to Sofia | 6,159.19 mi (9,912.26 km) |
| Coos Bay to Sopot | 6,189.95 mi (9,961.77 km) |
| Coos Bay to Sozopol | 6,258.82 mi (10,072.60 km) |
| Coos Bay to Sredets | 6,254.35 mi (10,065.40 km) |
| Coos Bay to Stamboliyski | 6,218.88 mi (10,008.33 km) |
| Coos Bay to Stara Zagora | 6,220.80 mi (10,011.41 km) |
| Coos Bay to Svilengrad | 6,273.94 mi (10,096.93 km) |
| Coos Bay to Svishtov | 6,139.17 mi (9,880.04 km) |
| Coos Bay to Targovishte | 6,185.15 mi (9,954.03 km) |
| Coos Bay to Teteven | 6,163.64 mi (9,919.43 km) |
| Coos Bay to Troyan | 6,174.38 mi (9,936.70 km) |
| Coos Bay to Tryavna | 6,190.13 mi (9,962.05 km) |
| Coos Bay to Tutrakan | 6,134.05 mi (9,871.80 km) |
| Coos Bay to Varna | 6,210.60 mi (9,994.99 km) |
