| Harstad to Karlovo | 1,831.95 mi (2,948.24 km) |
| Harstad to Karnobat | 1,847.16 mi (2,972.71 km) |
| Harstad to Kavarna | 1,803.25 mi (2,902.05 km) |
| Harstad to Kazanlak | 1,837.42 mi (2,957.05 km) |
| Harstad to Knezha | 1,769.02 mi (2,846.97 km) |
| Harstad to Kostinbrod | 1,811.51 mi (2,915.35 km) |
| Harstad to Kozloduy | 1,747.68 mi (2,812.61 km) |
| Harstad to Kyustendil | 1,845.76 mi (2,970.46 km) |
| Harstad to Levski | 1,784.33 mi (2,871.60 km) |
| Harstad to Lom | 1,742.24 mi (2,803.86 km) |
| Harstad to Lovech | 1,797.72 mi (2,893.15 km) |
| Harstad to Lukovit | 1,790.09 mi (2,880.87 km) |
| Harstad to Lyaskovets | 1,806.35 mi (2,907.04 km) |
| Harstad to Mezdra | 1,791.02 mi (2,882.37 km) |
| Harstad to Momchilgrad | 1,911.82 mi (3,076.78 km) |
