| Opelousas to Karlovo | 5,990.59 mi (9,640.92 km) |
| Opelousas to Karnobat | 6,075.28 mi (9,777.22 km) |
| Opelousas to Kavarna | 6,089.65 mi (9,800.34 km) |
| Opelousas to Kazanlak | 6,014.91 mi (9,680.06 km) |
| Opelousas to Knezha | 5,924.79 mi (9,535.02 km) |
| Opelousas to Kostinbrod | 5,920.45 mi (9,528.05 km) |
| Opelousas to Kozloduy | 5,898.86 mi (9,493.31 km) |
| Opelousas to Kyustendil | 5,922.14 mi (9,530.76 km) |
| Opelousas to Levski | 5,971.29 mi (9,609.86 km) |
| Opelousas to Lom | 5,877.76 mi (9,459.34 km) |
| Opelousas to Lovech | 5,965.43 mi (9,600.43 km) |
| Opelousas to Lukovit | 5,941.14 mi (9,561.33 km) |
| Opelousas to Lyaskovets | 6,005.62 mi (9,665.12 km) |
| Opelousas to Mezdra | 5,925.06 mi (9,535.47 km) |
| Opelousas to Momchilgrad | 6,063.78 mi (9,758.70 km) |
