| Encinitas to Smolyan | 6,741.83 mi (10,849.92 km) |
| Encinitas to Sofia | 6,639.24 mi (10,684.83 km) |
| Encinitas to Sopot | 6,680.22 mi (10,750.77 km) |
| Encinitas to Sozopol | 6,769.67 mi (10,894.73 km) |
| Encinitas to Sredets | 6,761.21 mi (10,881.12 km) |
| Encinitas to Stamboliyski | 6,704.93 mi (10,790.54 km) |
| Encinitas to Stara Zagora | 6,716.63 mi (10,809.37 km) |
| Encinitas to Svilengrad | 6,770.62 mi (10,896.26 km) |
| Encinitas to Svishtov | 6,638.59 mi (10,683.78 km) |
| Encinitas to Targovishte | 6,691.71 mi (10,769.26 km) |
| Encinitas to Teteven | 6,651.71 mi (10,704.89 km) |
| Encinitas to Troyan | 6,665.57 mi (10,727.19 km) |
| Encinitas to Tryavna | 6,686.97 mi (10,761.64 km) |
| Encinitas to Tutrakan | 6,644.59 mi (10,693.43 km) |
| Encinitas to Varna | 6,726.63 mi (10,825.46 km) |
