| West Covina to Karlovo | 6,636.99 mi (10,681.20 km) |
| West Covina to Karnobat | 6,692.06 mi (10,769.83 km) |
| West Covina to Kavarna | 6,675.48 mi (10,743.15 km) |
| West Covina to Kazanlak | 6,653.70 mi (10,708.10 km) |
| West Covina to Knezha | 6,567.46 mi (10,569.30 km) |
| West Covina to Kostinbrod | 6,585.28 mi (10,597.98 km) |
| West Covina to Kozloduy | 6,541.67 mi (10,527.80 km) |
| West Covina to Kyustendil | 6,602.37 mi (10,625.49 km) |
| West Covina to Levski | 6,602.07 mi (10,625.01 km) |
| West Covina to Lom | 6,526.35 mi (10,503.15 km) |
| West Covina to Lovech | 6,605.40 mi (10,630.36 km) |
| West Covina to Lukovit | 6,587.41 mi (10,601.41 km) |
| West Covina to Lyaskovets | 6,632.66 mi (10,674.24 km) |
| West Covina to Mezdra | 6,578.29 mi (10,586.73 km) |
| West Covina to Momchilgrad | 6,719.02 mi (10,813.23 km) |
