| Pontypridd to Karlovo | 1,448.95 mi (2,331.86 km) |
| Pontypridd to Karnobat | 1,540.37 mi (2,478.99 km) |
| Pontypridd to Kavarna | 1,567.11 mi (2,522.02 km) |
| Pontypridd to Kazanlak | 1,474.72 mi (2,373.33 km) |
| Pontypridd to Knezha | 1,385.45 mi (2,229.66 km) |
| Pontypridd to Kostinbrod | 1,376.10 mi (2,214.62 km) |
| Pontypridd to Kozloduy | 1,360.09 mi (2,188.85 km) |
| Pontypridd to Kyustendil | 1,375.89 mi (2,214.29 km) |
| Pontypridd to Levski | 1,434.50 mi (2,308.61 km) |
| Pontypridd to Lom | 1,337.76 mi (2,152.91 km) |
| Pontypridd to Lovech | 1,425.96 mi (2,294.87 km) |
| Pontypridd to Lukovit | 1,400.45 mi (2,253.81 km) |
| Pontypridd to Lyaskovets | 1,469.16 mi (2,364.38 km) |
| Pontypridd to Mezdra | 1,382.96 mi (2,225.66 km) |
| Pontypridd to Momchilgrad | 1,519.37 mi (2,445.19 km) |
