| Vallejo to Smolyan | 6,549.58 mi (10,540.53 km) |
| Vallejo to Sofia | 6,449.47 mi (10,379.42 km) |
| Vallejo to Sopot | 6,484.15 mi (10,435.23 km) |
| Vallejo to Sozopol | 6,560.82 mi (10,558.62 km) |
| Vallejo to Sredets | 6,554.88 mi (10,549.05 km) |
| Vallejo to Stamboliyski | 6,511.60 mi (10,479.40 km) |
| Vallejo to Stara Zagora | 6,517.16 mi (10,488.35 km) |
| Vallejo to Svilengrad | 6,570.77 mi (10,574.64 km) |
| Vallejo to Svishtov | 6,436.61 mi (10,358.72 km) |
| Vallejo to Targovishte | 6,485.36 mi (10,437.18 km) |
| Vallejo to Teteven | 6,456.94 mi (10,391.43 km) |
| Vallejo to Troyan | 6,468.87 mi (10,410.64 km) |
| Vallejo to Tryavna | 6,486.77 mi (10,439.44 km) |
| Vallejo to Tutrakan | 6,435.57 mi (10,357.06 km) |
| Vallejo to Varna | 6,514.35 mi (10,483.84 km) |
