| Llantrisant to Jozefow | 1,046.33 mi (1,683.91 km) |
| Llantrisant to Kalisz | 916.58 mi (1,475.09 km) |
| Llantrisant to Kamien Pomorski | 774.87 mi (1,247.03 km) |
| Llantrisant to Kamienna Gora | 840.10 mi (1,352.01 km) |
| Llantrisant to Karczew | 1,047.49 mi (1,685.78 km) |
| Llantrisant to Kartuzy | 915.02 mi (1,472.58 km) |
| Llantrisant to Katowice | 975.75 mi (1,570.33 km) |
| Llantrisant to Kedzierzyn-Kozle | 939.37 mi (1,511.78 km) |
| Llantrisant to Kepno | 917.31 mi (1,476.27 km) |
| Llantrisant to Ketrzyn | 1,043.17 mi (1,678.82 km) |
| Llantrisant to Kety | 990.70 mi (1,594.38 km) |
| Llantrisant to Kielce | 1,035.59 mi (1,666.62 km) |
| Llantrisant to Kielczow | 884.62 mi (1,423.65 km) |
| Llantrisant to Klobuck | 962.42 mi (1,548.87 km) |
| Llantrisant to Klodzko | 871.57 mi (1,402.65 km) |
