| Opelousas to Maryland Heights (Missouri) | 573.42 mi (922.83 km) |
| Opelousas to Marysville (California) | 1,766.58 mi (2,843.03 km) |
| Opelousas to Marysville (Ohio) | 830.22 mi (1,336.11 km) |
| Opelousas to Marysville (Washington) | 1,992.83 mi (3,207.14 km) |
| Opelousas to Maryville (Missouri) | 696.15 mi (1,120.34 km) |
| Opelousas to Maryville (Tennessee) | 591.16 mi (951.39 km) |
| Opelousas to Mason (Ohio) | 751.97 mi (1,210.18 km) |
| Opelousas to Mason City (Iowa) | 874.36 mi (1,407.15 km) |
| Opelousas to Massapequa (New York) | 1,254.53 mi (2,018.97 km) |
| Opelousas to Massapequa Park (New York) | 1,255.96 mi (2,021.27 km) |
| Opelousas to Massillon (Ohio) | 922.44 mi (1,484.52 km) |
| Opelousas to Mastic (New York) | 1,287.95 mi (2,072.75 km) |
| Opelousas to Mastic Beach (New York) | 1,287.09 mi (2,071.37 km) |
| Opelousas to Matteson (Illinois) | 796.37 mi (1,281.63 km) |
| Opelousas to Matthews (North Carolina) | 731.96 mi (1,177.98 km) |
