| Happy Valley to Smolyan | 6,093.13 mi (9,805.94 km) |
| Happy Valley to Sofia | 5,994.81 mi (9,647.71 km) |
| Happy Valley to Sopot | 6,025.93 mi (9,697.80 km) |
| Happy Valley to Sozopol | 6,095.68 mi (9,810.05 km) |
| Happy Valley to Sredets | 6,091.02 mi (9,802.56 km) |
| Happy Valley to Stamboliyski | 6,054.72 mi (9,744.14 km) |
| Happy Valley to Stara Zagora | 6,057.00 mi (9,747.80 km) |
| Happy Valley to Svilengrad | 6,110.20 mi (9,833.41 km) |
| Happy Valley to Svishtov | 5,975.47 mi (9,616.59 km) |
| Happy Valley to Targovishte | 6,021.77 mi (9,691.11 km) |
| Happy Valley to Teteven | 5,999.53 mi (9,655.31 km) |
| Happy Valley to Troyan | 6,010.38 mi (9,672.77 km) |
| Happy Valley to Tryavna | 6,026.35 mi (9,698.48 km) |
| Happy Valley to Tutrakan | 5,970.82 mi (9,609.11 km) |
| Happy Valley to Varna | 6,047.67 mi (9,732.79 km) |
