| Opelika to Karlovo | 5,614.64 mi (9,035.89 km) |
| Opelika to Karnobat | 5,702.72 mi (9,177.64 km) |
| Opelika to Kavarna | 5,721.46 mi (9,207.81 km) |
| Opelika to Kazanlak | 5,639.80 mi (9,076.38 km) |
| Opelika to Knezha | 5,550.01 mi (8,931.88 km) |
| Opelika to Kostinbrod | 5,542.59 mi (8,919.94 km) |
| Opelika to Kozloduy | 5,524.32 mi (8,890.54 km) |
| Opelika to Kyustendil | 5,542.14 mi (8,919.21 km) |
| Opelika to Levski | 5,597.75 mi (9,008.71 km) |
| Opelika to Lom | 5,502.60 mi (8,855.57 km) |
| Opelika to Lovech | 5,590.64 mi (8,997.27 km) |
| Opelika to Lukovit | 5,565.69 mi (8,957.11 km) |
| Opelika to Lyaskovets | 5,632.29 mi (9,064.29 km) |
| Opelika to Mezdra | 5,548.79 mi (8,929.91 km) |
| Opelika to Momchilgrad | 5,685.90 mi (9,150.56 km) |
