| Franklin Square to Smolyan | 4,802.08 mi (7,728.20 km) |
| Franklin Square to Sofia | 4,699.84 mi (7,563.67 km) |
| Franklin Square to Sopot | 4,760.14 mi (7,660.71 km) |
| Franklin Square to Sozopol | 4,889.40 mi (7,868.73 km) |
| Franklin Square to Sredets | 4,872.11 mi (7,840.91 km) |
| Franklin Square to Stamboliyski | 4,772.50 mi (7,680.60 km) |
| Franklin Square to Stara Zagora | 4,805.81 mi (7,734.20 km) |
| Franklin Square to Svilengrad | 4,856.13 mi (7,815.19 km) |
| Franklin Square to Svishtov | 4,744.73 mi (7,635.90 km) |
| Franklin Square to Targovishte | 4,809.43 mi (7,740.03 km) |
| Franklin Square to Teteven | 4,729.48 mi (7,611.36 km) |
| Franklin Square to Troyan | 4,749.21 mi (7,643.11 km) |
| Franklin Square to Tryavna | 4,781.72 mi (7,695.43 km) |
| Franklin Square to Tutrakan | 4,777.38 mi (7,688.45 km) |
| Franklin Square to Varna | 4,864.00 mi (7,827.86 km) |
