| Seal Beach to Maryland Heights (Missouri) | 1,569.35 mi (2,525.63 km) |
| Seal Beach to Marysville (California) | 420.83 mi (677.27 km) |
| Seal Beach to Marysville (Ohio) | 1,953.91 mi (3,144.51 km) |
| Seal Beach to Marysville (Washington) | 1,012.21 mi (1,628.99 km) |
| Seal Beach to Maryville (Missouri) | 1,353.18 mi (2,177.73 km) |
| Seal Beach to Maryville (Tennessee) | 1,930.62 mi (3,107.03 km) |
| Seal Beach to Mason (Ohio) | 1,902.21 mi (3,061.31 km) |
| Seal Beach to Mason City (Iowa) | 1,486.48 mi (2,392.26 km) |
| Seal Beach to Massapequa (New York) | 2,473.20 mi (3,980.22 km) |
| Seal Beach to Massapequa Park (New York) | 2,474.23 mi (3,981.90 km) |
| Seal Beach to Massillon (Ohio) | 2,051.51 mi (3,301.58 km) |
| Seal Beach to Mastic (New York) | 2,505.12 mi (4,031.60 km) |
| Seal Beach to Mastic Beach (New York) | 2,505.89 mi (4,032.83 km) |
| Seal Beach to Matteson (Illinois) | 1,733.33 mi (2,789.52 km) |
| Seal Beach to Matthews (North Carolina) | 2,118.60 mi (3,409.56 km) |
