| Bel Air South to Karlovo | 4,922.76 mi (7,922.42 km) |
| Bel Air South to Karnobat | 5,010.96 mi (8,064.36 km) |
| Bel Air South to Kavarna | 5,030.15 mi (8,095.25 km) |
| Bel Air South to Kazanlak | 4,947.93 mi (7,962.92 km) |
| Bel Air South to Knezha | 4,858.15 mi (7,818.44 km) |
| Bel Air South to Kostinbrod | 4,850.74 mi (7,806.51 km) |
| Bel Air South to Kozloduy | 4,832.47 mi (7,777.11 km) |
| Bel Air South to Kyustendil | 4,850.41 mi (7,805.98 km) |
| Bel Air South to Levski | 4,905.94 mi (7,895.35 km) |
| Bel Air South to Lom | 4,810.73 mi (7,742.12 km) |
| Bel Air South to Lovech | 4,898.78 mi (7,883.82 km) |
| Bel Air South to Lukovit | 4,873.81 mi (7,843.64 km) |
| Bel Air South to Lyaskovets | 4,940.48 mi (7,950.94 km) |
| Bel Air South to Mezdra | 4,856.91 mi (7,816.43 km) |
| Bel Air South to Momchilgrad | 4,994.05 mi (8,037.15 km) |
