| Pecos to Smolyan | 6,413.41 mi (10,321.38 km) |
| Pecos to Sofia | 6,309.11 mi (10,153.53 km) |
| Pecos to Sopot | 6,360.48 mi (10,236.20 km) |
| Pecos to Sozopol | 6,471.32 mi (10,414.58 km) |
| Pecos to Sredets | 6,458.36 mi (10,393.72 km) |
| Pecos to Stamboliyski | 6,379.50 mi (10,266.82 km) |
| Pecos to Stara Zagora | 6,402.18 mi (10,303.31 km) |
| Pecos to Svilengrad | 6,455.39 mi (10,388.94 km) |
| Pecos to Svishtov | 6,330.96 mi (10,188.69 km) |
| Pecos to Targovishte | 6,390.80 mi (10,285.00 km) |
| Pecos to Teteven | 6,330.36 mi (10,187.73 km) |
| Pecos to Troyan | 6,347.39 mi (10,215.14 km) |
| Pecos to Tryavna | 6,374.70 mi (10,259.09 km) |
| Pecos to Tutrakan | 6,350.04 mi (10,219.40 km) |
| Pecos to Varna | 6,436.00 mi (10,357.74 km) |
