| Buena Park to Smolyan | 6,712.04 mi (10,801.98 km) |
| Buena Park to Sofia | 6,609.77 mi (10,637.40 km) |
| Buena Park to Sopot | 6,649.78 mi (10,701.79 km) |
| Buena Park to Sozopol | 6,737.27 mi (10,842.59 km) |
| Buena Park to Sredets | 6,729.21 mi (10,829.61 km) |
| Buena Park to Stamboliyski | 6,674.94 mi (10,742.29 km) |
| Buena Park to Stara Zagora | 6,685.68 mi (10,759.56 km) |
| Buena Park to Svilengrad | 6,739.65 mi (10,846.42 km) |
| Buena Park to Svishtov | 6,607.19 mi (10,633.24 km) |
| Buena Park to Targovishte | 6,659.65 mi (10,717.67 km) |
| Buena Park to Teteven | 6,621.46 mi (10,656.20 km) |
| Buena Park to Troyan | 6,635.02 mi (10,678.03 km) |
| Buena Park to Tryavna | 6,655.89 mi (10,711.61 km) |
| Buena Park to Tutrakan | 6,612.08 mi (10,641.11 km) |
| Buena Park to Varna | 6,693.65 mi (10,772.40 km) |
