| Llantwit Major to Kaneohe (Hawaii) | 7,170.19 mi (11,539.31 km) |
| Llantwit Major to Kankakee (Illinois) | 3,866.45 mi (6,222.45 km) |
| Llantwit Major to Kannapolis (North Carolina) | 3,834.48 mi (6,170.99 km) |
| Llantwit Major to Kansas City (Kansas) | 4,225.33 mi (6,800.01 km) |
| Llantwit Major to Kansas City (Missouri) | 4,218.05 mi (6,788.30 km) |
| Llantwit Major to Kapaa (Hawaii) | 7,151.73 mi (11,509.60 km) |
| Llantwit Major to Kapolei (Hawaii) | 7,179.54 mi (11,554.35 km) |
| Llantwit Major to Katy (Texas) | 4,734.93 mi (7,620.14 km) |
| Llantwit Major to Kaukauna (Wisconsin) | 3,738.72 mi (6,016.89 km) |
| Llantwit Major to Kaysville (Utah) | 4,743.62 mi (7,634.11 km) |
| Llantwit Major to Kearney (Missouri) | 4,199.45 mi (6,758.36 km) |
| Llantwit Major to Kearney (Nebraska) | 4,310.66 mi (6,937.33 km) |
| Llantwit Major to Kearns (Utah) | 4,765.88 mi (7,669.94 km) |
| Llantwit Major to Kearny (New Jersey) | 3,328.73 mi (5,357.07 km) |
| Llantwit Major to Keene (New Hampshire) | 3,162.81 mi (5,090.05 km) |
