| Pawtucket to Smolyan | 4,657.78 mi (7,495.96 km) |
| Pawtucket to Sofia | 4,555.58 mi (7,331.50 km) |
| Pawtucket to Sopot | 4,615.98 mi (7,428.70 km) |
| Pawtucket to Sozopol | 4,745.47 mi (7,637.10 km) |
| Pawtucket to Sredets | 4,728.12 mi (7,609.18 km) |
| Pawtucket to Stamboliyski | 4,628.25 mi (7,448.45 km) |
| Pawtucket to Stara Zagora | 4,661.69 mi (7,502.26 km) |
| Pawtucket to Svilengrad | 4,711.96 mi (7,583.16 km) |
| Pawtucket to Svishtov | 4,600.78 mi (7,404.25 km) |
| Pawtucket to Targovishte | 4,665.54 mi (7,508.47 km) |
| Pawtucket to Teteven | 4,585.32 mi (7,379.36 km) |
| Pawtucket to Troyan | 4,605.07 mi (7,411.15 km) |
| Pawtucket to Tryavna | 4,637.65 mi (7,463.58 km) |
| Pawtucket to Tutrakan | 4,633.67 mi (7,457.16 km) |
| Pawtucket to Varna | 4,720.26 mi (7,596.53 km) |
