| Sligo to McKeesport (Pennsylvania) | 3,323.84 mi (5,349.20 km) |
| Sligo to McKinleyville (California) | 4,839.17 mi (7,787.89 km) |
| Sligo to McKinney (Texas) | 4,326.18 mi (6,962.32 km) |
| Sligo to McLean (Virginia) | 3,284.34 mi (5,285.63 km) |
| Sligo to McMinnville (Oregon) | 4,571.50 mi (7,357.11 km) |
| Sligo to McMinnville (Tennessee) | 3,779.54 mi (6,082.58 km) |
| Sligo to McNair (Virginia) | 3,292.58 mi (5,298.90 km) |
| Sligo to McPherson (Kansas) | 4,097.57 mi (6,594.40 km) |
| Sligo to Mead Valley (California) | 5,030.40 mi (8,095.64 km) |
| Sligo to Meadow Woods (Florida) | 3,973.70 mi (6,395.05 km) |
| Sligo to Meadowbrook (Virginia) | 3,366.75 mi (5,418.26 km) |
| Sligo to Meadville (Pennsylvania) | 3,275.79 mi (5,271.88 km) |
| Sligo to Mebane (North Carolina) | 3,502.95 mi (5,637.45 km) |
| Sligo to Mechanicsville (Virginia) | 3,352.74 mi (5,395.71 km) |
| Sligo to Medford (Massachusetts) | 2,885.99 mi (4,644.55 km) |
