| Ukiah to Karlovo | 6,441.04 mi (10,365.85 km) |
| Ukiah to Karnobat | 6,485.82 mi (10,437.92 km) |
| Ukiah to Kavarna | 6,460.45 mi (10,397.09 km) |
| Ukiah to Kazanlak | 6,455.03 mi (10,388.37 km) |
| Ukiah to Knezha | 6,372.04 mi (10,254.81 km) |
| Ukiah to Kostinbrod | 6,396.25 mi (10,293.78 km) |
| Ukiah to Kozloduy | 6,346.91 mi (10,214.37 km) |
| Ukiah to Kyustendil | 6,417.75 mi (10,328.37 km) |
| Ukiah to Levski | 6,402.21 mi (10,303.35 km) |
| Ukiah to Lom | 6,333.74 mi (10,193.16 km) |
| Ukiah to Lovech | 6,408.24 mi (10,313.07 km) |
| Ukiah to Lukovit | 6,392.62 mi (10,287.92 km) |
| Ukiah to Lyaskovets | 6,430.93 mi (10,349.58 km) |
| Ukiah to Mezdra | 6,385.85 mi (10,277.03 km) |
| Ukiah to Momchilgrad | 6,523.83 mi (10,499.09 km) |
