| Ridgecrest to Smolyan | 6,594.19 mi (10,612.32 km) |
| Ridgecrest to Sofia | 6,492.14 mi (10,448.08 km) |
| Ridgecrest to Sopot | 6,531.55 mi (10,511.52 km) |
| Ridgecrest to Sozopol | 6,617.92 mi (10,650.51 km) |
| Ridgecrest to Sredets | 6,610.07 mi (10,637.88 km) |
| Ridgecrest to Stamboliyski | 6,556.98 mi (10,552.44 km) |
| Ridgecrest to Stara Zagora | 6,567.14 mi (10,568.80 km) |
| Ridgecrest to Svilengrad | 6,621.10 mi (10,655.62 km) |
| Ridgecrest to Svishtov | 6,488.41 mi (10,442.08 km) |
| Ridgecrest to Targovishte | 6,540.49 mi (10,525.91 km) |
| Ridgecrest to Teteven | 6,503.34 mi (10,466.11 km) |
| Ridgecrest to Troyan | 6,516.73 mi (10,487.66 km) |
| Ridgecrest to Tryavna | 6,537.28 mi (10,520.73 km) |
| Ridgecrest to Tutrakan | 6,492.68 mi (10,448.96 km) |
| Ridgecrest to Varna | 6,574.00 mi (10,579.83 km) |
