| Willmar to Karlovo | 5,333.85 mi (8,584.00 km) |
| Willmar to Karnobat | 5,402.91 mi (8,695.14 km) |
| Willmar to Kavarna | 5,400.31 mi (8,690.96 km) |
| Willmar to Kazanlak | 5,354.14 mi (8,616.65 km) |
| Willmar to Knezha | 5,264.89 mi (8,473.02 km) |
| Willmar to Kostinbrod | 5,273.45 mi (8,486.80 km) |
| Willmar to Kozloduy | 5,238.65 mi (8,430.80 km) |
| Willmar to Kyustendil | 5,284.34 mi (8,504.32 km) |
| Willmar to Levski | 5,305.26 mi (8,537.99 km) |
| Willmar to Lom | 5,220.59 mi (8,401.73 km) |
| Willmar to Lovech | 5,304.59 mi (8,536.91 km) |
| Willmar to Lukovit | 5,283.57 mi (8,503.09 km) |
| Willmar to Lyaskovets | 5,337.98 mi (8,590.65 km) |
| Willmar to Mezdra | 5,271.31 mi (8,483.35 km) |
| Willmar to Momchilgrad | 5,413.29 mi (8,711.84 km) |
