| Opelika to Morris (Illinois) | 625.06 mi (1,005.94 km) |
| Opelika to Morristown (New Jersey) | 823.56 mi (1,325.39 km) |
| Opelika to Morristown (Tennessee) | 271.89 mi (437.57 km) |
| Opelika to Morrisville (North Carolina) | 433.14 mi (697.07 km) |
| Opelika to Morro Bay (California) | 2,029.25 mi (3,265.77 km) |
| Opelika to Morton (Illinois) | 594.21 mi (956.29 km) |
| Opelika to Morton Grove (Illinois) | 661.49 mi (1,064.56 km) |
| Opelika to Moscow (Idaho) | 1,922.95 mi (3,094.70 km) |
| Opelika to Moses Lake (Washington) | 2,033.61 mi (3,272.78 km) |
| Opelika to Moss Bluff (Louisiana) | 489.01 mi (786.99 km) |
| Opelika to Moss Point (Mississippi) | 241.51 mi (388.68 km) |
| Opelika to Moultrie (Georgia) | 140.16 mi (225.56 km) |
| Opelika to Mounds View (Minnesota) | 956.39 mi (1,539.16 km) |
| Opelika to Mount Airy (North Carolina) | 379.38 mi (610.56 km) |
| Opelika to Mount Clemens (Michigan) | 699.89 mi (1,126.37 km) |
