| Holyhead to Kenosha (Wisconsin) | 3,698.69 mi (5,952.46 km) |
| Holyhead to Kent (Ohio) | 3,515.53 mi (5,657.69 km) |
| Holyhead to Kent (Washington) | 4,576.94 mi (7,365.87 km) |
| Holyhead to Kentwood (Michigan) | 3,598.74 mi (5,791.61 km) |
| Holyhead to Kerman (California) | 5,120.25 mi (8,240.24 km) |
| Holyhead to Kernersville (North Carolina) | 3,701.54 mi (5,957.06 km) |
| Holyhead to Kerrville (Texas) | 4,756.93 mi (7,655.55 km) |
| Holyhead to Kettering (Maryland) | 3,438.38 mi (5,533.53 km) |
| Holyhead to Kettering (Ohio) | 3,691.61 mi (5,941.07 km) |
| Holyhead to Kewanee (Illinois) | 3,839.18 mi (6,178.56 km) |
| Holyhead to Key Biscayne (Florida) | 4,226.76 mi (6,802.31 km) |
| Holyhead to Key Largo (Florida) | 4,266.45 mi (6,866.18 km) |
| Holyhead to Key West (Florida) | 4,351.70 mi (7,003.39 km) |
| Holyhead to Keystone (Florida) | 4,200.58 mi (6,760.17 km) |
| Holyhead to Kihei (Hawaii) | 7,048.42 mi (11,343.33 km) |
