| Altus to McKeesport (Pennsylvania) | 1,133.92 mi (1,824.87 km) |
| Altus to McKinleyville (California) | 1,415.29 mi (2,277.69 km) |
| Altus to McKinney (Texas) | 181.64 mi (292.31 km) |
| Altus to McLean (Virginia) | 1,255.27 mi (2,020.16 km) |
| Altus to McMinnville (Oregon) | 1,452.40 mi (2,337.42 km) |
| Altus to McMinnville (Tennessee) | 766.57 mi (1,233.67 km) |
| Altus to McNair (Virginia) | 1,243.75 mi (2,001.62 km) |
| Altus to McPherson (Kansas) | 272.44 mi (438.45 km) |
| Altus to Mead Valley (California) | 1,027.09 mi (1,652.95 km) |
| Altus to Meadow Woods (Florida) | 1,141.43 mi (1,836.95 km) |
| Altus to Meadowbrook (Virginia) | 1,231.80 mi (1,982.40 km) |
| Altus to Meadville (Pennsylvania) | 1,144.23 mi (1,841.46 km) |
| Altus to Mebane (North Carolina) | 1,130.94 mi (1,820.07 km) |
| Altus to Mechanicsville (Virginia) | 1,238.87 mi (1,993.78 km) |
| Altus to Medford (Massachusetts) | 1,606.68 mi (2,585.70 km) |
