| Holyhead to Mineral Wells (Texas) | 4,570.24 mi (7,355.10 km) |
| Holyhead to Minneapolis (Minnesota) | 3,784.93 mi (6,091.25 km) |
| Holyhead to Minnehaha (Washington) | 4,685.98 mi (7,541.36 km) |
| Holyhead to Minneola (Florida) | 4,140.81 mi (6,664.00 km) |
| Holyhead to Minnetonka (Minnesota) | 3,793.26 mi (6,104.67 km) |
| Holyhead to Minooka (Illinois) | 3,767.15 mi (6,062.65 km) |
| Holyhead to Minot (North Dakota) | 3,903.13 mi (6,281.47 km) |
| Holyhead to Mint Hill (North Carolina) | 3,769.20 mi (6,065.94 km) |
| Holyhead to Miramar (Florida) | 4,218.88 mi (6,789.64 km) |
| Holyhead to Mishawaka (Indiana) | 3,676.54 mi (5,916.82 km) |
| Holyhead to Mission (Texas) | 4,930.78 mi (7,935.33 km) |
| Holyhead to Mission Bend (Texas) | 4,641.53 mi (7,469.82 km) |
| Holyhead to Mission Viejo (California) | 5,221.17 mi (8,402.65 km) |
| Holyhead to Missoula (Montana) | 4,372.07 mi (7,036.17 km) |
| Holyhead to Missouri City (Texas) | 4,643.43 mi (7,472.88 km) |
