| Cartagena to McKeesport (Pennsylvania) | 4,092.24 mi (6,585.82 km) |
| Cartagena to McKinleyville (California) | 5,928.94 mi (9,541.71 km) |
| Cartagena to McKinney (Texas) | 5,142.53 mi (8,276.11 km) |
| Cartagena to McLean (Virginia) | 4,005.32 mi (6,445.93 km) |
| Cartagena to McMinnville (Oregon) | 5,680.30 mi (9,141.56 km) |
| Cartagena to McMinnville (Tennessee) | 4,527.50 mi (7,286.31 km) |
| Cartagena to McNair (Virginia) | 4,015.68 mi (6,462.61 km) |
| Cartagena to McPherson (Kansas) | 4,985.14 mi (8,022.81 km) |
| Cartagena to Mead Valley (California) | 6,027.96 mi (9,701.07 km) |
| Cartagena to Meadow Woods (Florida) | 4,560.75 mi (7,339.82 km) |
| Cartagena to Meadowbrook (Virginia) | 4,063.74 mi (6,539.96 km) |
| Cartagena to Meadville (Pennsylvania) | 4,068.53 mi (6,547.67 km) |
| Cartagena to Mebane (North Carolina) | 4,194.34 mi (6,750.13 km) |
| Cartagena to Mechanicsville (Virginia) | 4,052.04 mi (6,521.13 km) |
| Cartagena to Medford (Massachusetts) | 3,619.11 mi (5,824.40 km) |
