| Arecibo to Karlovo | 5,439.21 mi (8,753.56 km) |
| Arecibo to Karnobat | 5,545.99 mi (8,925.41 km) |
| Arecibo to Kavarna | 5,595.61 mi (9,005.26 km) |
| Arecibo to Kazanlak | 5,468.80 mi (8,801.18 km) |
| Arecibo to Knezha | 5,389.06 mi (8,672.85 km) |
| Arecibo to Kostinbrod | 5,358.03 mi (8,622.91 km) |
| Arecibo to Kozloduy | 5,367.34 mi (8,637.90 km) |
| Arecibo to Kyustendil | 5,340.31 mi (8,594.40 km) |
| Arecibo to Levski | 5,442.37 mi (8,758.64 km) |
| Arecibo to Lom | 5,342.63 mi (8,598.13 km) |
| Arecibo to Lovech | 5,426.19 mi (8,732.61 km) |
| Arecibo to Lukovit | 5,398.20 mi (8,687.56 km) |
| Arecibo to Lyaskovets | 5,475.51 mi (8,811.99 km) |
| Arecibo to Mezdra | 5,376.24 mi (8,652.22 km) |
| Arecibo to Momchilgrad | 5,489.34 mi (8,834.23 km) |
