| Socorro to Karlovo | 6,440.46 mi (10,364.91 km) |
| Socorro to Karnobat | 6,510.96 mi (10,478.38 km) |
| Socorro to Kavarna | 6,509.30 mi (10,475.71 km) |
| Socorro to Kazanlak | 6,461.17 mi (10,398.25 km) |
| Socorro to Knezha | 6,371.69 mi (10,254.24 km) |
| Socorro to Kostinbrod | 6,378.88 mi (10,265.81 km) |
| Socorro to Kozloduy | 6,345.44 mi (10,212.00 km) |
| Socorro to Kyustendil | 6,388.63 mi (10,281.51 km) |
| Socorro to Levski | 6,412.68 mi (10,320.21 km) |
| Socorro to Lom | 6,327.04 mi (10,182.38 km) |
| Socorro to Lovech | 6,411.55 mi (10,318.39 km) |
| Socorro to Lukovit | 6,390.18 mi (10,284.00 km) |
| Socorro to Lyaskovets | 6,445.59 mi (10,373.18 km) |
| Socorro to Mezdra | 6,377.49 mi (10,263.58 km) |
| Socorro to Momchilgrad | 6,519.39 mi (10,491.95 km) |
