| Upper Arlington to Karlovo | 5,165.75 mi (8,313.48 km) |
| Upper Arlington to Karnobat | 5,249.01 mi (8,447.46 km) |
| Upper Arlington to Kavarna | 5,262.01 mi (8,468.38 km) |
| Upper Arlington to Kazanlak | 5,189.68 mi (8,351.98 km) |
| Upper Arlington to Knezha | 5,099.48 mi (8,206.83 km) |
| Upper Arlington to Kostinbrod | 5,096.60 mi (8,202.19 km) |
| Upper Arlington to Kozloduy | 5,073.48 mi (8,164.98 km) |
| Upper Arlington to Kyustendil | 5,099.46 mi (8,206.79 km) |
| Upper Arlington to Levski | 5,145.44 mi (8,280.79 km) |
| Upper Arlington to Lom | 5,052.66 mi (8,131.46 km) |
| Upper Arlington to Lovech | 5,140.10 mi (8,272.20 km) |
| Upper Arlington to Lukovit | 5,116.11 mi (8,233.59 km) |
| Upper Arlington to Lyaskovets | 5,179.68 mi (8,335.89 km) |
| Upper Arlington to Mezdra | 5,100.43 mi (8,208.35 km) |
| Upper Arlington to Momchilgrad | 5,239.81 mi (8,432.67 km) |
