| Oroville to Smolyan | 6,447.36 mi (10,376.02 km) |
| Oroville to Sofia | 6,347.30 mi (10,215.00 km) |
| Oroville to Sopot | 6,381.87 mi (10,270.64 km) |
| Oroville to Sozopol | 6,458.41 mi (10,393.81 km) |
| Oroville to Sredets | 6,452.49 mi (10,384.27 km) |
| Oroville to Stamboliyski | 6,409.36 mi (10,314.87 km) |
| Oroville to Stara Zagora | 6,414.84 mi (10,323.68 km) |
| Oroville to Svilengrad | 6,468.44 mi (10,409.95 km) |
| Oroville to Svishtov | 6,334.27 mi (10,194.01 km) |
| Oroville to Targovishte | 6,382.97 mi (10,272.40 km) |
| Oroville to Teteven | 6,354.68 mi (10,226.88 km) |
| Oroville to Troyan | 6,366.59 mi (10,246.03 km) |
| Oroville to Tryavna | 6,384.44 mi (10,274.76 km) |
| Oroville to Tutrakan | 6,333.17 mi (10,192.25 km) |
| Oroville to Varna | 6,411.93 mi (10,319.00 km) |
