| Seaford to McKeesport (Pennsylvania) | 3,741.66 mi (6,021.62 km) |
| Seaford to McKinleyville (California) | 5,261.89 mi (8,468.19 km) |
| Seaford to McKinney (Texas) | 4,752.82 mi (7,648.93 km) |
| Seaford to McLean (Virginia) | 3,695.25 mi (5,946.94 km) |
| Seaford to McMinnville (Oregon) | 4,990.66 mi (8,031.69 km) |
| Seaford to McMinnville (Tennessee) | 4,196.77 mi (6,754.05 km) |
| Seaford to McNair (Virginia) | 3,703.87 mi (5,960.80 km) |
| Seaford to McPherson (Kansas) | 4,529.09 mi (7,288.87 km) |
| Seaford to Mead Valley (California) | 5,463.05 mi (8,791.94 km) |
| Seaford to Meadow Woods (Florida) | 4,366.91 mi (7,027.86 km) |
| Seaford to Meadowbrook (Virginia) | 3,774.49 mi (6,074.45 km) |
| Seaford to Meadville (Pennsylvania) | 3,696.48 mi (5,948.91 km) |
| Seaford to Mebane (North Carolina) | 3,910.65 mi (6,293.59 km) |
| Seaford to Mechanicsville (Virginia) | 3,760.75 mi (6,052.35 km) |
| Seaford to Medford (Massachusetts) | 3,296.14 mi (5,304.62 km) |
