| Fort Smith to Karlovo | 5,824.04 mi (9,372.89 km) |
| Fort Smith to Karnobat | 5,902.77 mi (9,499.60 km) |
| Fort Smith to Kavarna | 5,910.25 mi (9,511.63 km) |
| Fort Smith to Kazanlak | 5,846.84 mi (9,409.58 km) |
| Fort Smith to Knezha | 5,756.64 mi (9,264.42 km) |
| Fort Smith to Kostinbrod | 5,757.50 mi (9,265.80 km) |
| Fort Smith to Kozloduy | 5,730.47 mi (9,222.30 km) |
| Fort Smith to Kyustendil | 5,762.90 mi (9,274.49 km) |
| Fort Smith to Levski | 5,800.88 mi (9,335.61 km) |
| Fort Smith to Lom | 5,710.49 mi (9,190.15 km) |
| Fort Smith to Lovech | 5,797.10 mi (9,329.53 km) |
| Fort Smith to Lukovit | 5,774.02 mi (9,292.38 km) |
| Fort Smith to Lyaskovets | 5,834.72 mi (9,390.08 km) |
| Fort Smith to Mezdra | 5,759.41 mi (9,268.87 km) |
| Fort Smith to Momchilgrad | 5,900.12 mi (9,495.32 km) |
