| Seal Beach to Smolyan | 6,720.12 mi (10,814.99 km) |
| Seal Beach to Sofia | 6,617.86 mi (10,650.41 km) |
| Seal Beach to Sopot | 6,657.86 mi (10,714.79 km) |
| Seal Beach to Sozopol | 6,745.34 mi (10,855.57 km) |
| Seal Beach to Sredets | 6,737.28 mi (10,842.60 km) |
| Seal Beach to Stamboliyski | 6,683.03 mi (10,755.29 km) |
| Seal Beach to Stara Zagora | 6,693.76 mi (10,772.56 km) |
| Seal Beach to Svilengrad | 6,747.73 mi (10,859.42 km) |
| Seal Beach to Svishtov | 6,615.26 mi (10,646.24 km) |
| Seal Beach to Targovishte | 6,667.72 mi (10,730.66 km) |
| Seal Beach to Teteven | 6,629.54 mi (10,669.21 km) |
| Seal Beach to Troyan | 6,643.10 mi (10,691.04 km) |
| Seal Beach to Tryavna | 6,663.96 mi (10,724.61 km) |
| Seal Beach to Tutrakan | 6,620.15 mi (10,654.10 km) |
| Seal Beach to Varna | 6,701.72 mi (10,785.37 km) |
