| Sidney to Karlovo | 5,195.07 mi (8,360.66 km) |
| Sidney to Karnobat | 5,277.30 mi (8,493.00 km) |
| Sidney to Kavarna | 5,289.09 mi (8,511.96 km) |
| Sidney to Kazanlak | 5,218.74 mi (8,398.75 km) |
| Sidney to Knezha | 5,128.52 mi (8,253.55 km) |
| Sidney to Kostinbrod | 5,126.53 mi (8,250.35 km) |
| Sidney to Kozloduy | 5,102.46 mi (8,211.62 km) |
| Sidney to Kyustendil | 5,130.02 mi (8,255.97 km) |
| Sidney to Levski | 5,174.09 mi (8,326.89 km) |
| Sidney to Lom | 5,081.83 mi (8,178.42 km) |
| Sidney to Lovech | 5,169.11 mi (8,318.88 km) |
| Sidney to Lukovit | 5,145.33 mi (8,280.60 km) |
| Sidney to Lyaskovets | 5,208.25 mi (8,381.86 km) |
| Sidney to Mezdra | 5,129.90 mi (8,255.77 km) |
| Sidney to Momchilgrad | 5,269.64 mi (8,480.66 km) |
