| Amarillo to Karlovo | 6,092.61 mi (9,805.10 km) |
| Amarillo to Karnobat | 6,164.65 mi (9,921.05 km) |
| Amarillo to Kavarna | 6,164.76 mi (9,921.22 km) |
| Amarillo to Kazanlak | 6,113.71 mi (9,839.06 km) |
| Amarillo to Knezha | 6,024.03 mi (9,694.74 km) |
| Amarillo to Kostinbrod | 6,030.14 mi (9,704.57 km) |
| Amarillo to Kozloduy | 5,997.77 mi (9,652.48 km) |
| Amarillo to Kyustendil | 6,039.20 mi (9,719.15 km) |
| Amarillo to Levski | 6,065.63 mi (9,761.69 km) |
| Amarillo to Lom | 5,979.09 mi (9,622.41 km) |
| Amarillo to Lovech | 6,064.02 mi (9,759.10 km) |
| Amarillo to Lukovit | 6,042.34 mi (9,724.20 km) |
| Amarillo to Lyaskovets | 6,098.73 mi (9,814.96 km) |
| Amarillo to Mezdra | 6,029.31 mi (9,703.24 km) |
| Amarillo to Momchilgrad | 6,171.11 mi (9,931.43 km) |
