| Perth to Smolyan | 1,615.76 mi (2,600.31 km) |
| Perth to Sofia | 1,511.47 mi (2,432.47 km) |
| Perth to Sopot | 1,562.66 mi (2,514.87 km) |
| Perth to Sozopol | 1,677.72 mi (2,700.02 km) |
| Perth to Sredets | 1,663.34 mi (2,676.88 km) |
| Perth to Stamboliyski | 1,581.61 mi (2,545.35 km) |
| Perth to Stara Zagora | 1,604.83 mi (2,582.72 km) |
| Perth to Svilengrad | 1,657.81 mi (2,667.98 km) |
| Perth to Svishtov | 1,535.40 mi (2,470.99 km) |
| Perth to Targovishte | 1,596.99 mi (2,570.11 km) |
| Perth to Teteven | 1,532.48 mi (2,466.29 km) |
| Perth to Troyan | 1,549.72 mi (2,494.04 km) |
| Perth to Tryavna | 1,577.80 mi (2,539.23 km) |
| Perth to Tutrakan | 1,559.47 mi (2,509.72 km) |
| Perth to Varna | 1,646.21 mi (2,649.33 km) |
