| Spencer to Karlovo | 5,440.43 mi (8,755.52 km) |
| Spencer to Karnobat | 5,511.35 mi (8,869.65 km) |
| Spencer to Kavarna | 5,510.60 mi (8,868.45 km) |
| Spencer to Kazanlak | 5,461.21 mi (8,788.96 km) |
| Spencer to Knezha | 5,371.69 mi (8,644.89 km) |
| Spencer to Kostinbrod | 5,378.83 mi (8,656.39 km) |
| Spencer to Kozloduy | 5,345.43 mi (8,602.64 km) |
| Spencer to Kyustendil | 5,388.70 mi (8,672.28 km) |
| Spencer to Levski | 5,412.81 mi (8,711.08 km) |
| Spencer to Lom | 5,327.00 mi (8,572.97 km) |
| Spencer to Lovech | 5,411.57 mi (8,709.07 km) |
| Spencer to Lukovit | 5,390.15 mi (8,674.61 km) |
| Spencer to Lyaskovets | 5,445.78 mi (8,764.13 km) |
| Spencer to Mezdra | 5,377.44 mi (8,654.15 km) |
| Spencer to Momchilgrad | 5,519.33 mi (8,882.51 km) |
