| Providence to Karlovo | 4,622.55 mi (7,439.28 km) |
| Providence to Karnobat | 4,711.44 mi (7,582.32 km) |
| Providence to Kavarna | 4,731.66 mi (7,614.87 km) |
| Providence to Kazanlak | 4,647.88 mi (7,480.04 km) |
| Providence to Knezha | 4,558.20 mi (7,335.72 km) |
| Providence to Kostinbrod | 4,550.17 mi (7,322.80 km) |
| Providence to Kozloduy | 4,532.58 mi (7,294.49 km) |
| Providence to Kyustendil | 4,549.46 mi (7,321.64 km) |
| Providence to Levski | 4,606.24 mi (7,413.03 km) |
| Providence to Lom | 4,510.71 mi (7,259.29 km) |
| Providence to Lovech | 4,598.82 mi (7,401.08 km) |
| Providence to Lukovit | 4,573.72 mi (7,360.69 km) |
| Providence to Lyaskovets | 4,640.82 mi (7,468.67 km) |
| Providence to Mezdra | 4,556.65 mi (7,333.22 km) |
| Providence to Momchilgrad | 4,693.45 mi (7,553.37 km) |
