| Princeton to Karlovo | 5,750.17 mi (9,254.00 km) |
| Princeton to Karnobat | 5,846.85 mi (9,409.59 km) |
| Princeton to Kavarna | 5,877.49 mi (9,458.91 km) |
| Princeton to Kazanlak | 5,777.44 mi (9,297.89 km) |
| Princeton to Knezha | 5,689.85 mi (9,156.93 km) |
| Princeton to Kostinbrod | 5,673.39 mi (9,130.43 km) |
| Princeton to Kozloduy | 5,665.20 mi (9,117.26 km) |
| Princeton to Kyustendil | 5,666.38 mi (9,119.16 km) |
| Princeton to Levski | 5,740.53 mi (9,238.50 km) |
| Princeton to Lom | 5,641.96 mi (9,079.86 km) |
| Princeton to Lovech | 5,729.88 mi (9,221.36 km) |
| Princeton to Lukovit | 5,703.34 mi (9,178.64 km) |
| Princeton to Lyaskovets | 5,775.16 mi (9,294.21 km) |
| Princeton to Mezdra | 5,684.23 mi (9,147.89 km) |
| Princeton to Momchilgrad | 5,814.68 mi (9,357.82 km) |
