| Provo to Smolyan | 6,156.15 mi (9,907.37 km) |
| Provo to Sofia | 6,053.44 mi (9,742.08 km) |
| Provo to Sopot | 6,094.85 mi (9,808.72 km) |
| Provo to Sozopol | 6,185.61 mi (9,954.77 km) |
| Provo to Sredets | 6,176.85 mi (9,940.67 km) |
| Provo to Stamboliyski | 6,119.35 mi (9,848.13 km) |
| Provo to Stara Zagora | 6,131.55 mi (9,867.78 km) |
| Provo to Svilengrad | 6,185.55 mi (9,954.68 km) |
| Provo to Svishtov | 6,053.81 mi (9,742.66 km) |
| Provo to Targovishte | 6,107.39 mi (9,828.89 km) |
| Provo to Teteven | 6,066.25 mi (9,762.69 km) |
| Provo to Troyan | 6,080.26 mi (9,785.24 km) |
| Provo to Tryavna | 6,101.98 mi (9,820.19 km) |
| Provo to Tutrakan | 6,060.65 mi (9,753.67 km) |
| Provo to Varna | 6,143.07 mi (9,886.31 km) |
