| Ironton to Karlovo | 5,221.68 mi (8,403.47 km) |
| Ironton to Karnobat | 5,306.59 mi (8,540.13 km) |
| Ironton to Kavarna | 5,321.56 mi (8,564.23 km) |
| Ironton to Kazanlak | 5,246.02 mi (8,442.66 km) |
| Ironton to Knezha | 5,155.92 mi (8,297.65 km) |
| Ironton to Kostinbrod | 5,151.53 mi (8,290.58 km) |
| Ironton to Kozloduy | 5,130.00 mi (8,255.95 km) |
| Ironton to Kyustendil | 5,153.30 mi (8,293.44 km) |
| Ironton to Levski | 5,202.50 mi (8,372.61 km) |
| Ironton to Lom | 5,108.87 mi (8,221.92 km) |
| Ironton to Lovech | 5,196.56 mi (8,363.06 km) |
| Ironton to Lukovit | 5,172.24 mi (8,323.91 km) |
| Ironton to Lyaskovets | 5,236.85 mi (8,427.90 km) |
| Ironton to Mezdra | 5,156.14 mi (8,298.01 km) |
| Ironton to Momchilgrad | 5,294.85 mi (8,521.24 km) |
