| Half Moon Bay to Smolyan | 6,594.74 mi (10,613.21 km) |
| Half Moon Bay to Sofia | 6,494.57 mi (10,452.00 km) |
| Half Moon Bay to Sopot | 6,529.38 mi (10,508.02 km) |
| Half Moon Bay to Sozopol | 6,606.28 mi (10,631.78 km) |
| Half Moon Bay to Sredets | 6,600.29 mi (10,622.15 km) |
| Half Moon Bay to Stamboliyski | 6,556.78 mi (10,552.11 km) |
| Half Moon Bay to Stara Zagora | 6,562.45 mi (10,561.25 km) |
| Half Moon Bay to Svilengrad | 6,616.08 mi (10,647.55 km) |
| Half Moon Bay to Svishtov | 6,481.94 mi (10,431.68 km) |
| Half Moon Bay to Targovishte | 6,530.77 mi (10,510.26 km) |
| Half Moon Bay to Teteven | 6,502.14 mi (10,464.18 km) |
| Half Moon Bay to Troyan | 6,514.11 mi (10,483.45 km) |
| Half Moon Bay to Tryavna | 6,532.08 mi (10,512.36 km) |
| Half Moon Bay to Tutrakan | 6,481.03 mi (10,430.20 km) |
| Half Moon Bay to Varna | 6,559.86 mi (10,557.07 km) |
