| South Bend to Karlovo | 5,206.38 mi (8,378.85 km) |
| South Bend to Karnobat | 5,285.75 mi (8,506.59 km) |
| South Bend to Kavarna | 5,294.23 mi (8,520.25 km) |
| South Bend to Kazanlak | 5,229.32 mi (8,415.77 km) |
| South Bend to Knezha | 5,139.10 mi (8,270.58 km) |
| South Bend to Kostinbrod | 5,139.56 mi (8,271.33 km) |
| South Bend to Kozloduy | 5,112.94 mi (8,228.49 km) |
| South Bend to Kyustendil | 5,144.79 mi (8,279.74 km) |
| South Bend to Levski | 5,183.57 mi (8,342.16 km) |
| South Bend to Lom | 5,092.86 mi (8,196.16 km) |
| South Bend to Lovech | 5,179.58 mi (8,335.74 km) |
| South Bend to Lukovit | 5,156.39 mi (8,298.40 km) |
| South Bend to Lyaskovets | 5,217.48 mi (8,396.73 km) |
| South Bend to Mezdra | 5,141.66 mi (8,274.69 km) |
| South Bend to Momchilgrad | 5,282.25 mi (8,500.96 km) |
