| Santa Monica to Smolyan | 6,714.21 mi (10,805.47 km) |
| Santa Monica to Sofia | 6,612.10 mi (10,641.15 km) |
| Santa Monica to Sopot | 6,651.65 mi (10,704.80 km) |
| Santa Monica to Sozopol | 6,738.21 mi (10,844.11 km) |
| Santa Monica to Sredets | 6,730.34 mi (10,831.43 km) |
| Santa Monica to Stamboliyski | 6,677.03 mi (10,745.63 km) |
| Santa Monica to Stara Zagora | 6,687.31 mi (10,762.18 km) |
| Santa Monica to Svilengrad | 6,741.26 mi (10,849.02 km) |
| Santa Monica to Svishtov | 6,608.62 mi (10,635.54 km) |
| Santa Monica to Targovishte | 6,660.76 mi (10,719.46 km) |
| Santa Monica to Teteven | 6,623.42 mi (10,659.36 km) |
| Santa Monica to Troyan | 6,636.84 mi (10,680.97 km) |
| Santa Monica to Tryavna | 6,657.46 mi (10,714.14 km) |
| Santa Monica to Tutrakan | 6,612.98 mi (10,642.57 km) |
| Santa Monica to Varna | 6,694.33 mi (10,773.48 km) |
