| Gurnee to Karlovo | 5,232.74 mi (8,421.29 km) |
| Gurnee to Karnobat | 5,310.19 mi (8,545.92 km) |
| Gurnee to Kavarna | 5,316.51 mi (8,556.10 km) |
| Gurnee to Kazanlak | 5,255.19 mi (8,457.42 km) |
| Gurnee to Knezha | 5,165.05 mi (8,312.35 km) |
| Gurnee to Kostinbrod | 5,167.11 mi (8,315.66 km) |
| Gurnee to Kozloduy | 5,138.85 mi (8,270.18 km) |
| Gurnee to Kyustendil | 5,173.45 mi (8,325.87 km) |
| Gurnee to Levski | 5,208.78 mi (8,382.72 km) |
| Gurnee to Lom | 5,119.13 mi (8,238.45 km) |
| Gurnee to Lovech | 5,205.43 mi (8,377.34 km) |
| Gurnee to Lukovit | 5,182.64 mi (8,340.65 km) |
| Gurnee to Lyaskovets | 5,242.49 mi (8,436.98 km) |
| Gurnee to Mezdra | 5,168.37 mi (8,317.69 km) |
| Gurnee to Momchilgrad | 5,309.41 mi (8,544.68 km) |
