| West Valley City to Smolyan | 6,139.83 mi (9,881.10 km) |
| West Valley City to Sofia | 6,037.28 mi (9,716.06 km) |
| West Valley City to Sopot | 6,078.20 mi (9,781.92 km) |
| West Valley City to Sozopol | 6,167.98 mi (9,926.41 km) |
| West Valley City to Sredets | 6,159.42 mi (9,912.62 km) |
| West Valley City to Stamboliyski | 6,102.92 mi (9,821.71 km) |
| West Valley City to Stara Zagora | 6,114.65 mi (9,840.57 km) |
| West Valley City to Svilengrad | 6,168.64 mi (9,927.47 km) |
| West Valley City to Svishtov | 6,036.67 mi (9,715.08 km) |
| West Valley City to Targovishte | 6,089.93 mi (9,800.79 km) |
| West Valley City to Teteven | 6,049.69 mi (9,736.04 km) |
| West Valley City to Troyan | 6,063.56 mi (9,758.35 km) |
| West Valley City to Tryavna | 6,085.00 mi (9,792.87 km) |
| West Valley City to Tutrakan | 6,042.95 mi (9,725.19 km) |
| West Valley City to Varna | 6,125.15 mi (9,857.48 km) |
