| Perth Amboy to Smolyan | 4,834.33 mi (7,780.10 km) |
| Perth Amboy to Sofia | 4,732.04 mi (7,615.48 km) |
| Perth Amboy to Sopot | 4,792.23 mi (7,712.35 km) |
| Perth Amboy to Sozopol | 4,921.27 mi (7,920.03 km) |
| Perth Amboy to Sredets | 4,904.04 mi (7,892.30 km) |
| Perth Amboy to Stamboliyski | 4,804.69 mi (7,732.40 km) |
| Perth Amboy to Stara Zagora | 4,837.86 mi (7,785.78 km) |
| Perth Amboy to Svilengrad | 4,888.23 mi (7,866.85 km) |
| Perth Amboy to Svishtov | 4,776.62 mi (7,687.23 km) |
| Perth Amboy to Targovishte | 4,841.27 mi (7,791.28 km) |
| Perth Amboy to Teteven | 4,761.57 mi (7,663.01 km) |
| Perth Amboy to Troyan | 4,781.26 mi (7,694.70 km) |
| Perth Amboy to Tryavna | 4,813.71 mi (7,746.92 km) |
| Perth Amboy to Tutrakan | 4,809.09 mi (7,739.48 km) |
| Perth Amboy to Varna | 4,895.73 mi (7,878.92 km) |
