| Bound Brook to Smolyan | 4,843.27 mi (7,794.50 km) |
| Bound Brook to Sofia | 4,740.92 mi (7,629.78 km) |
| Bound Brook to Sopot | 4,800.99 mi (7,726.45 km) |
| Bound Brook to Sozopol | 4,929.79 mi (7,933.74 km) |
| Bound Brook to Sredets | 4,912.62 mi (7,906.10 km) |
| Bound Brook to Stamboliyski | 4,813.56 mi (7,746.67 km) |
| Bound Brook to Stara Zagora | 4,846.57 mi (7,799.80 km) |
| Bound Brook to Svilengrad | 4,897.01 mi (7,880.97 km) |
| Bound Brook to Svishtov | 4,785.16 mi (7,700.97 km) |
| Bound Brook to Targovishte | 4,849.76 mi (7,804.93 km) |
| Bound Brook to Teteven | 4,770.33 mi (7,677.11 km) |
| Bound Brook to Troyan | 4,789.99 mi (7,708.74 km) |
| Bound Brook to Tryavna | 4,822.37 mi (7,760.85 km) |
| Bound Brook to Tutrakan | 4,817.44 mi (7,752.92 km) |
| Bound Brook to Varna | 4,904.10 mi (7,892.38 km) |
