| Birstall to Karlovo | 1,427.09 mi (2,296.68 km) |
| Birstall to Karnobat | 1,511.02 mi (2,431.76 km) |
| Birstall to Kavarna | 1,528.72 mi (2,460.23 km) |
| Birstall to Kazanlak | 1,450.90 mi (2,335.00 km) |
| Birstall to Knezha | 1,360.70 mi (2,189.84 km) |
| Birstall to Kostinbrod | 1,359.08 mi (2,187.22 km) |
| Birstall to Kozloduy | 1,334.71 mi (2,148.00 km) |
| Birstall to Kyustendil | 1,364.41 mi (2,195.80 km) |
| Birstall to Levski | 1,406.91 mi (2,264.21 km) |
| Birstall to Lom | 1,313.90 mi (2,114.52 km) |
| Birstall to Lovech | 1,401.33 mi (2,255.22 km) |
| Birstall to Lukovit | 1,377.38 mi (2,216.67 km) |
| Birstall to Lyaskovets | 1,441.25 mi (2,319.47 km) |
| Birstall to Mezdra | 1,361.93 mi (2,191.81 km) |
| Birstall to Momchilgrad | 1,501.96 mi (2,417.17 km) |
