| Cedar Falls to Karlovo | 5,382.82 mi (8,662.81 km) |
| Cedar Falls to Karnobat | 5,456.58 mi (8,781.51 km) |
| Cedar Falls to Kavarna | 5,458.83 mi (8,785.15 km) |
| Cedar Falls to Kazanlak | 5,404.33 mi (8,697.42 km) |
| Cedar Falls to Knezha | 5,314.47 mi (8,552.81 km) |
| Cedar Falls to Kostinbrod | 5,319.44 mi (8,560.81 km) |
| Cedar Falls to Kozloduy | 5,288.22 mi (8,510.56 km) |
| Cedar Falls to Kyustendil | 5,327.80 mi (8,574.27 km) |
| Cedar Falls to Levski | 5,356.74 mi (8,620.84 km) |
| Cedar Falls to Lom | 5,269.22 mi (8,479.99 km) |
| Cedar Falls to Lovech | 5,354.60 mi (8,617.39 km) |
| Cedar Falls to Lukovit | 5,332.57 mi (8,581.95 km) |
| Cedar Falls to Lyaskovets | 5,390.05 mi (8,674.45 km) |
| Cedar Falls to Mezdra | 5,319.18 mi (8,560.40 km) |
| Cedar Falls to Momchilgrad | 5,460.82 mi (8,788.35 km) |
