| Butte to Karlovo | 5,784.77 mi (9,309.69 km) |
| Butte to Karnobat | 5,836.62 mi (9,393.13 km) |
| Butte to Kavarna | 5,817.61 mi (9,362.53 km) |
| Butte to Kazanlak | 5,800.59 mi (9,335.15 km) |
| Butte to Knezha | 5,715.34 mi (9,197.95 km) |
| Butte to Kostinbrod | 5,735.48 mi (9,230.36 km) |
| Butte to Kozloduy | 5,689.75 mi (9,156.76 km) |
| Butte to Kyustendil | 5,754.28 mi (9,260.63 km) |
| Butte to Levski | 5,748.50 mi (9,251.32 km) |
| Butte to Lom | 5,675.16 mi (9,133.29 km) |
| Butte to Lovech | 5,752.73 mi (9,258.13 km) |
| Butte to Lukovit | 5,735.53 mi (9,230.44 km) |
| Butte to Lyaskovets | 5,778.53 mi (9,299.65 km) |
| Butte to Mezdra | 5,727.23 mi (9,217.08 km) |
| Butte to Momchilgrad | 5,867.17 mi (9,442.30 km) |
