| Opelika to Montgomeryville (Pennsylvania) | 768.60 mi (1,236.94 km) |
| Opelika to Monticello (Minnesota) | 982.09 mi (1,580.53 km) |
| Opelika to Montrose (Colorado) | 1,321.83 mi (2,127.27 km) |
| Opelika to Moody (Alabama) | 91.60 mi (147.41 km) |
| Opelika to Moore (Oklahoma) | 716.63 mi (1,153.31 km) |
| Opelika to Moorestown-Lenola (New Jersey) | 767.65 mi (1,235.41 km) |
| Opelika to Mooresville (North Carolina) | 329.39 mi (530.09 km) |
| Opelika to Moorhead (Minnesota) | 1,149.69 mi (1,850.24 km) |
| Opelika to Moorpark (California) | 1,925.28 mi (3,098.44 km) |
| Opelika to Moraga (California) | 2,090.25 mi (3,363.94 km) |
| Opelika to Moreno Valley (California) | 1,832.88 mi (2,949.73 km) |
| Opelika to Morgan City (Louisiana) | 399.77 mi (643.37 km) |
| Opelika to Morgan Hill (California) | 2,065.53 mi (3,324.15 km) |
| Opelika to Morganton (North Carolina) | 298.98 mi (481.16 km) |
| Opelika to Morgantown (West Virginia) | 569.09 mi (915.87 km) |
