| Rancho San Diego to Smolyan | 6,750.11 mi (10,863.25 km) |
| Rancho San Diego to Sofia | 6,647.40 mi (10,697.96 km) |
| Rancho San Diego to Sopot | 6,688.78 mi (10,764.55 km) |
| Rancho San Diego to Sozopol | 6,779.05 mi (10,909.82 km) |
| Rancho San Diego to Sredets | 6,770.43 mi (10,895.95 km) |
| Rancho San Diego to Stamboliyski | 6,713.30 mi (10,804.01 km) |
| Rancho San Diego to Stara Zagora | 6,725.40 mi (10,823.49 km) |
| Rancho San Diego to Svilengrad | 6,779.40 mi (10,910.39 km) |
| Rancho San Diego to Svishtov | 6,647.56 mi (10,698.21 km) |
| Rancho San Diego to Targovishte | 6,700.95 mi (10,784.13 km) |
| Rancho San Diego to Teteven | 6,660.19 mi (10,718.54 km) |
| Rancho San Diego to Troyan | 6,674.17 mi (10,741.04 km) |
| Rancho San Diego to Tryavna | 6,695.80 mi (10,775.86 km) |
| Rancho San Diego to Tutrakan | 6,654.03 mi (10,708.62 km) |
| Rancho San Diego to Varna | 6,736.25 mi (10,840.95 km) |
