| Nashua to Karlovo | 4,586.80 mi (7,381.75 km) |
| Nashua to Karnobat | 4,674.73 mi (7,523.24 km) |
| Nashua to Kavarna | 4,693.73 mi (7,553.83 km) |
| Nashua to Kazanlak | 4,611.89 mi (7,422.12 km) |
| Nashua to Knezha | 4,522.07 mi (7,277.57 km) |
| Nashua to Kostinbrod | 4,514.99 mi (7,266.17 km) |
| Nashua to Kozloduy | 4,496.37 mi (7,236.21 km) |
| Nashua to Kyustendil | 4,514.95 mi (7,266.12 km) |
| Nashua to Levski | 4,569.77 mi (7,354.33 km) |
| Nashua to Lom | 4,474.68 mi (7,201.30 km) |
| Nashua to Lovech | 4,562.71 mi (7,342.97 km) |
| Nashua to Lukovit | 4,537.80 mi (7,302.88 km) |
| Nashua to Lyaskovets | 4,604.30 mi (7,409.90 km) |
| Nashua to Mezdra | 4,520.97 mi (7,275.80 km) |
| Nashua to Momchilgrad | 4,658.32 mi (7,496.84 km) |
