| Opelousas to Morris (Illinois) | 776.75 mi (1,250.06 km) |
| Opelousas to Morristown (New Jersey) | 1,212.86 mi (1,951.90 km) |
| Opelousas to Morristown (Tennessee) | 640.41 mi (1,030.63 km) |
| Opelousas to Morrisville (North Carolina) | 848.37 mi (1,365.33 km) |
| Opelousas to Morro Bay (California) | 1,694.89 mi (2,727.66 km) |
| Opelousas to Morton (Illinois) | 712.26 mi (1,146.26 km) |
| Opelousas to Morton Grove (Illinois) | 830.58 mi (1,336.70 km) |
| Opelousas to Moscow (Idaho) | 1,736.67 mi (2,794.90 km) |
| Opelousas to Moses Lake (Washington) | 1,843.43 mi (2,966.71 km) |
| Opelousas to Moss Bluff (Louisiana) | 68.67 mi (110.51 km) |
| Opelousas to Moss Point (Mississippi) | 211.66 mi (340.64 km) |
| Opelousas to Moultrie (Georgia) | 494.84 mi (796.37 km) |
| Opelousas to Mounds View (Minnesota) | 1,009.36 mi (1,624.40 km) |
| Opelousas to Mount Airy (North Carolina) | 778.33 mi (1,252.60 km) |
| Opelousas to Mount Clemens (Michigan) | 976.56 mi (1,571.62 km) |
