| Opelika to Missouri City (Texas) | 637.63 mi (1,026.17 km) |
| Opelika to Mitchell (South Dakota) | 1,025.78 mi (1,650.84 km) |
| Opelika to Mitchellville (Maryland) | 646.11 mi (1,039.81 km) |
| Opelika to Moberly (Missouri) | 610.71 mi (982.84 km) |
| Opelika to Mobile (Alabama) | 211.45 mi (340.30 km) |
| Opelika to Modesto (California) | 2,029.40 mi (3,266.01 km) |
| Opelika to Mokena (Illinois) | 628.19 mi (1,010.97 km) |
| Opelika to Moline (Illinois) | 671.21 mi (1,080.20 km) |
| Opelika to Moncks Corner (South Carolina) | 313.21 mi (504.06 km) |
| Opelika to Monfort Heights (Ohio) | 452.61 mi (728.41 km) |
| Opelika to Monmouth (Oregon) | 2,182.19 mi (3,511.89 km) |
| Opelika to Monroe (Georgia) | 124.07 mi (199.67 km) |
| Opelika to Monroe (Louisiana) | 390.13 mi (627.85 km) |
| Opelika to Monroe (Michigan) | 648.66 mi (1,043.92 km) |
| Opelika to Monroe (North Carolina) | 320.40 mi (515.63 km) |
