| Woodburn to Smolyan | 6,118.28 mi (9,846.42 km) |
| Woodburn to Sofia | 6,020.02 mi (9,688.29 km) |
| Woodburn to Sopot | 6,051.02 mi (9,738.18 km) |
| Woodburn to Sozopol | 6,120.49 mi (9,849.98 km) |
| Woodburn to Sredets | 6,115.89 mi (9,842.58 km) |
| Woodburn to Stamboliyski | 6,079.86 mi (9,784.59 km) |
| Woodburn to Stara Zagora | 6,082.02 mi (9,788.06 km) |
| Woodburn to Svilengrad | 6,135.20 mi (9,873.64 km) |
| Woodburn to Svishtov | 6,000.46 mi (9,656.80 km) |
| Woodburn to Targovishte | 6,046.66 mi (9,731.15 km) |
| Woodburn to Teteven | 6,024.65 mi (9,695.74 km) |
| Woodburn to Troyan | 6,035.46 mi (9,713.14 km) |
| Woodburn to Tryavna | 6,051.36 mi (9,738.73 km) |
| Woodburn to Tutrakan | 5,995.66 mi (9,649.09 km) |
| Woodburn to Varna | 6,072.42 mi (9,772.62 km) |
