| West Sacramento to Smolyan | 6,506.38 mi (10,471.01 km) |
| West Sacramento to Sofia | 6,406.12 mi (10,309.66 km) |
| West Sacramento to Sopot | 6,441.14 mi (10,366.01 km) |
| West Sacramento to Sozopol | 6,518.54 mi (10,490.58 km) |
| West Sacramento to Sredets | 6,512.45 mi (10,480.78 km) |
| West Sacramento to Stamboliyski | 6,468.45 mi (10,409.96 km) |
| West Sacramento to Stara Zagora | 6,474.34 mi (10,419.44 km) |
| West Sacramento to Svilengrad | 6,527.99 mi (10,505.78 km) |
| West Sacramento to Svishtov | 6,393.91 mi (10,290.00 km) |
| West Sacramento to Targovishte | 6,442.92 mi (10,368.87 km) |
| West Sacramento to Teteven | 6,413.85 mi (10,322.09 km) |
| West Sacramento to Troyan | 6,425.89 mi (10,341.47 km) |
| West Sacramento to Tryavna | 6,443.98 mi (10,370.59 km) |
| West Sacramento to Tutrakan | 6,393.27 mi (10,288.97 km) |
| West Sacramento to Varna | 6,472.26 mi (10,416.09 km) |
