| Portales to Karlovo | 6,200.59 mi (9,978.89 km) |
| Portales to Karnobat | 6,272.00 mi (10,093.80 km) |
| Portales to Kavarna | 6,271.38 mi (10,092.82 km) |
| Portales to Kazanlak | 6,221.53 mi (10,012.59 km) |
| Portales to Knezha | 6,131.93 mi (9,868.39 km) |
| Portales to Kostinbrod | 6,138.50 mi (9,878.97 km) |
| Portales to Kozloduy | 6,105.68 mi (9,826.14 km) |
| Portales to Kyustendil | 6,147.86 mi (9,894.03 km) |
| Portales to Levski | 6,173.28 mi (9,934.93 km) |
| Portales to Lom | 6,087.11 mi (9,796.26 km) |
| Portales to Lovech | 6,171.87 mi (9,932.66 km) |
| Portales to Lukovit | 6,150.32 mi (9,897.98 km) |
| Portales to Lyaskovets | 6,206.30 mi (9,988.08 km) |
| Portales to Mezdra | 6,137.44 mi (9,877.25 km) |
| Portales to Momchilgrad | 6,279.28 mi (10,105.52 km) |
