| Llantrisant to Karditsa | 1,474.67 mi (2,373.25 km) |
| Llantrisant to Kastoria | 1,395.77 mi (2,246.28 km) |
| Llantrisant to Katerini | 1,456.01 mi (2,343.22 km) |
| Llantrisant to Keratsini | 1,607.80 mi (2,587.51 km) |
| Llantrisant to Kerkyra | 1,385.39 mi (2,229.57 km) |
| Llantrisant to Kiato | 1,572.09 mi (2,530.04 km) |
| Llantrisant to Kifisia | 1,609.98 mi (2,591.02 km) |
| Llantrisant to Kilkis | 1,438.77 mi (2,315.48 km) |
| Llantrisant to Komotini | 1,537.75 mi (2,474.77 km) |
| Llantrisant to Korinthos | 1,582.45 mi (2,546.70 km) |
| Llantrisant to Koropi | 1,621.02 mi (2,608.79 km) |
| Llantrisant to Korydallos | 1,608.30 mi (2,588.31 km) |
| Llantrisant to Kos | 1,803.94 mi (2,903.16 km) |
| Llantrisant to Kozani | 1,426.06 mi (2,295.03 km) |
| Llantrisant to Lagos | 1,523.06 mi (2,451.12 km) |
