| Llantrisant to Kaneohe (Hawaii) | 7,163.44 mi (11,528.44 km) |
| Llantrisant to Kankakee (Illinois) | 3,866.36 mi (6,222.30 km) |
| Llantrisant to Kannapolis (North Carolina) | 3,836.11 mi (6,173.63 km) |
| Llantrisant to Kansas City (Kansas) | 4,224.78 mi (6,799.13 km) |
| Llantrisant to Kansas City (Missouri) | 4,217.52 mi (6,787.45 km) |
| Llantrisant to Kapaa (Hawaii) | 7,144.76 mi (11,498.37 km) |
| Llantrisant to Kapolei (Hawaii) | 7,172.75 mi (11,543.43 km) |
| Llantrisant to Katy (Texas) | 4,735.53 mi (7,621.11 km) |
| Llantrisant to Kaukauna (Wisconsin) | 3,738.06 mi (6,015.82 km) |
| Llantrisant to Kaysville (Utah) | 4,740.91 mi (7,629.76 km) |
| Llantrisant to Kearney (Missouri) | 4,198.91 mi (6,757.49 km) |
| Llantrisant to Kearney (Nebraska) | 4,309.40 mi (6,935.31 km) |
| Llantrisant to Kearns (Utah) | 4,763.21 mi (7,665.65 km) |
| Llantrisant to Kearny (New Jersey) | 3,330.21 mi (5,359.45 km) |
| Llantrisant to Keene (New Hampshire) | 3,164.05 mi (5,092.05 km) |
