| Opelousas to Mendota (California) | 1,676.81 mi (2,698.57 km) |
| Opelousas to Mendota Heights (Minnesota) | 993.59 mi (1,599.02 km) |
| Opelousas to Menifee (California) | 1,481.64 mi (2,384.47 km) |
| Opelousas to Menlo Park (California) | 1,780.43 mi (2,865.33 km) |
| Opelousas to Menomonee Falls (Wisconsin) | 898.96 mi (1,446.74 km) |
| Opelousas to Menomonie (Wisconsin) | 992.51 mi (1,597.29 km) |
| Opelousas to Mentor (Ohio) | 975.43 mi (1,569.80 km) |
| Opelousas to Mequon (Wisconsin) | 906.59 mi (1,459.02 km) |
| Opelousas to Merced (California) | 1,687.01 mi (2,714.98 km) |
| Opelousas to Mercedes (Texas) | 465.68 mi (749.44 km) |
| Opelousas to Mercer Island (Washington) | 1,980.37 mi (3,187.10 km) |
| Opelousas to Mercerville (New Jersey) | 1,183.89 mi (1,905.28 km) |
| Opelousas to Meriden (Connecticut) | 1,314.21 mi (2,115.02 km) |
| Opelousas to Meridian (Idaho) | 1,607.32 mi (2,586.74 km) |
| Opelousas to Meridian (Mississippi) | 237.62 mi (382.42 km) |
