| Cahokia to McKeesport (Pennsylvania) | 564.53 mi (908.52 km) |
| Cahokia to McKinleyville (California) | 1,797.20 mi (2,892.31 km) |
| Cahokia to McKinney (Texas) | 518.59 mi (834.58 km) |
| Cahokia to McLean (Virginia) | 699.55 mi (1,125.82 km) |
| Cahokia to McMinnville (Oregon) | 1,745.61 mi (2,809.29 km) |
| Cahokia to McMinnville (Tennessee) | 313.40 mi (504.36 km) |
| Cahokia to McNair (Virginia) | 687.87 mi (1,107.01 km) |
| Cahokia to McPherson (Kansas) | 404.82 mi (651.49 km) |
| Cahokia to Mead Valley (California) | 1,540.31 mi (2,478.88 km) |
| Cahokia to Meadow Woods (Florida) | 868.12 mi (1,397.11 km) |
| Cahokia to Meadowbrook (Virginia) | 695.64 mi (1,119.53 km) |
| Cahokia to Meadville (Pennsylvania) | 570.91 mi (918.80 km) |
| Cahokia to Mebane (North Carolina) | 622.77 mi (1,002.25 km) |
| Cahokia to Mechanicsville (Virginia) | 699.70 mi (1,126.06 km) |
| Cahokia to Medford (Massachusetts) | 1,034.41 mi (1,664.73 km) |
