| Perth to Karlovo | 1,564.96 mi (2,518.57 km) |
| Perth to Karnobat | 1,641.58 mi (2,641.86 km) |
| Perth to Kavarna | 1,650.76 mi (2,656.65 km) |
| Perth to Kazanlak | 1,586.88 mi (2,553.83 km) |
| Perth to Knezha | 1,496.85 mi (2,408.95 km) |
| Perth to Kostinbrod | 1,501.63 mi (2,416.64 km) |
| Perth to Kozloduy | 1,470.62 mi (2,366.73 km) |
| Perth to Kyustendil | 1,511.27 mi (2,432.15 km) |
| Perth to Levski | 1,540.10 mi (2,478.55 km) |
| Perth to Lom | 1,451.34 mi (2,335.71 km) |
| Perth to Lovech | 1,537.12 mi (2,473.75 km) |
| Perth to Lukovit | 1,514.75 mi (2,437.76 km) |
| Perth to Lyaskovets | 1,573.78 mi (2,532.76 km) |
| Perth to Mezdra | 1,501.18 mi (2,415.92 km) |
| Perth to Momchilgrad | 1,642.81 mi (2,643.84 km) |
