| Opelika to Maryland Heights (Missouri) | 506.77 mi (815.56 km) |
| Opelika to Marysville (California) | 2,060.94 mi (3,316.77 km) |
| Opelika to Marysville (Ohio) | 534.65 mi (860.44 km) |
| Opelika to Marysville (Washington) | 2,180.91 mi (3,509.84 km) |
| Opelika to Maryville (Missouri) | 747.24 mi (1,202.56 km) |
| Opelika to Maryville (Tennessee) | 227.66 mi (366.39 km) |
| Opelika to Mason (Ohio) | 466.51 mi (750.78 km) |
| Opelika to Mason City (Iowa) | 839.89 mi (1,351.66 km) |
| Opelika to Massapequa (New York) | 859.66 mi (1,383.49 km) |
| Opelika to Massapequa Park (New York) | 861.12 mi (1,385.84 km) |
| Opelika to Massillon (Ohio) | 600.21 mi (965.94 km) |
| Opelika to Mastic (New York) | 891.85 mi (1,435.30 km) |
| Opelika to Mastic Beach (New York) | 890.61 mi (1,433.30 km) |
| Opelika to Matteson (Illinois) | 625.08 mi (1,005.97 km) |
| Opelika to Matthews (North Carolina) | 316.95 mi (510.08 km) |
