| Orinda to Smolyan | 6,562.95 mi (10,562.04 km) |
| Orinda to Sofia | 6,462.77 mi (10,400.82 km) |
| Orinda to Sopot | 6,497.60 mi (10,456.87 km) |
| Orinda to Sozopol | 6,574.57 mi (10,580.74 km) |
| Orinda to Sredets | 6,568.57 mi (10,571.09 km) |
| Orinda to Stamboliyski | 6,524.99 mi (10,500.95 km) |
| Orinda to Stara Zagora | 6,530.69 mi (10,510.13 km) |
| Orinda to Svilengrad | 6,584.32 mi (10,596.44 km) |
| Orinda to Svishtov | 6,450.19 mi (10,380.58 km) |
| Orinda to Targovishte | 6,499.04 mi (10,459.20 km) |
| Orinda to Teteven | 6,470.35 mi (10,413.03 km) |
| Orinda to Troyan | 6,482.33 mi (10,432.30 km) |
| Orinda to Tryavna | 6,500.31 mi (10,461.24 km) |
| Orinda to Tutrakan | 6,449.31 mi (10,379.16 km) |
| Orinda to Varna | 6,528.17 mi (10,506.07 km) |
