| Bothell West to Karlovo | 5,872.27 mi (9,450.50 km) |
| Bothell West to Karnobat | 5,912.28 mi (9,514.90 km) |
| Bothell West to Kavarna | 5,883.30 mi (9,468.26 km) |
| Bothell West to Kazanlak | 5,884.96 mi (9,470.93 km) |
| Bothell West to Knezha | 5,803.77 mi (9,340.26 km) |
| Bothell West to Kostinbrod | 5,830.93 mi (9,383.97 km) |
| Bothell West to Kozloduy | 5,779.05 mi (9,300.48 km) |
| Bothell West to Kyustendil | 5,854.48 mi (9,421.88 km) |
| Bothell West to Levski | 5,831.78 mi (9,385.34 km) |
| Bothell West to Lom | 5,766.93 mi (9,280.98 km) |
| Bothell West to Lovech | 5,839.03 mi (9,397.01 km) |
| Bothell West to Lukovit | 5,824.56 mi (9,373.72 km) |
| Bothell West to Lyaskovets | 5,859.56 mi (9,430.05 km) |
| Bothell West to Mezdra | 5,818.92 mi (9,364.65 km) |
| Bothell West to Momchilgrad | 5,955.09 mi (9,583.79 km) |
