| Serpa to McKeesport (Pennsylvania) | 3,762.45 mi (6,055.08 km) |
| Serpa to McKinleyville (California) | 5,672.94 mi (9,129.71 km) |
| Serpa to McKinney (Texas) | 4,813.66 mi (7,746.84 km) |
| Serpa to McLean (Virginia) | 3,669.24 mi (5,905.08 km) |
| Serpa to McMinnville (Oregon) | 5,435.78 mi (8,748.05 km) |
| Serpa to McMinnville (Tennessee) | 4,191.71 mi (6,745.90 km) |
| Serpa to McNair (Virginia) | 3,679.82 mi (5,922.11 km) |
| Serpa to McPherson (Kansas) | 4,670.84 mi (7,516.99 km) |
| Serpa to Mead Valley (California) | 5,735.45 mi (9,230.32 km) |
| Serpa to Meadow Woods (Florida) | 4,207.61 mi (6,771.49 km) |
| Serpa to Meadowbrook (Virginia) | 3,724.13 mi (5,993.40 km) |
| Serpa to Meadville (Pennsylvania) | 3,742.89 mi (6,023.60 km) |
| Serpa to Mebane (North Carolina) | 3,853.20 mi (6,201.12 km) |
| Serpa to Mechanicsville (Virginia) | 3,712.80 mi (5,975.17 km) |
| Serpa to Medford (Massachusetts) | 3,287.94 mi (5,291.42 km) |
