| Willimantic to Karlovo | 4,659.40 mi (7,498.57 km) |
| Willimantic to Karnobat | 4,747.93 mi (7,641.06 km) |
| Willimantic to Kavarna | 4,767.68 mi (7,672.85 km) |
| Willimantic to Kazanlak | 4,684.64 mi (7,539.20 km) |
| Willimantic to Knezha | 4,594.91 mi (7,394.79 km) |
| Willimantic to Kostinbrod | 4,587.21 mi (7,382.41 km) |
| Willimantic to Kozloduy | 4,569.26 mi (7,353.51 km) |
| Willimantic to Kyustendil | 4,586.73 mi (7,381.63 km) |
| Willimantic to Levski | 4,642.82 mi (7,471.90 km) |
| Willimantic to Lom | 4,547.45 mi (7,318.42 km) |
| Willimantic to Lovech | 4,635.53 mi (7,460.16 km) |
| Willimantic to Lukovit | 4,610.50 mi (7,419.88 km) |
| Willimantic to Lyaskovets | 4,677.38 mi (7,527.51 km) |
| Willimantic to Mezdra | 4,593.52 mi (7,392.55 km) |
| Willimantic to Momchilgrad | 4,730.51 mi (7,613.02 km) |
