| Benicia to Smolyan | 6,550.28 mi (10,541.66 km) |
| Benicia to Sofia | 6,450.13 mi (10,380.49 km) |
| Benicia to Sopot | 6,484.89 mi (10,436.43 km) |
| Benicia to Sozopol | 6,561.74 mi (10,560.10 km) |
| Benicia to Sredets | 6,555.76 mi (10,550.48 km) |
| Benicia to Stamboliyski | 6,512.31 mi (10,480.55 km) |
| Benicia to Stara Zagora | 6,517.95 mi (10,489.63 km) |
| Benicia to Svilengrad | 6,571.57 mi (10,575.93 km) |
| Benicia to Svishtov | 6,437.43 mi (10,360.04 km) |
| Benicia to Targovishte | 6,486.24 mi (10,438.59 km) |
| Benicia to Teteven | 6,457.66 mi (10,392.61 km) |
| Benicia to Troyan | 6,469.62 mi (10,411.85 km) |
| Benicia to Tryavna | 6,487.57 mi (10,440.73 km) |
| Benicia to Tutrakan | 6,436.49 mi (10,358.52 km) |
| Benicia to Varna | 6,515.31 mi (10,485.38 km) |
