| Richfield to Karlovo | 5,289.30 mi (8,512.31 km) |
| Richfield to Karnobat | 5,360.06 mi (8,626.19 km) |
| Richfield to Kavarna | 5,359.23 mi (8,624.85 km) |
| Richfield to Kazanlak | 5,310.03 mi (8,545.67 km) |
| Richfield to Knezha | 5,220.53 mi (8,401.64 km) |
| Richfield to Kostinbrod | 5,227.83 mi (8,413.39 km) |
| Richfield to Kozloduy | 5,194.28 mi (8,359.39 km) |
| Richfield to Kyustendil | 5,237.85 mi (8,429.50 km) |
| Richfield to Levski | 5,261.59 mi (8,467.72 km) |
| Richfield to Lom | 5,175.88 mi (8,329.78 km) |
| Richfield to Lovech | 5,260.40 mi (8,465.79 km) |
| Richfield to Lukovit | 5,239.02 mi (8,431.39 km) |
| Richfield to Lyaskovets | 5,294.54 mi (8,520.74 km) |
| Richfield to Mezdra | 5,226.35 mi (8,411.00 km) |
| Richfield to Momchilgrad | 5,368.26 mi (8,639.39 km) |
