| Opelousas to Johnstown (Pennsylvania) | 1,001.76 mi (1,612.18 km) |
| Opelousas to Joliet (Illinois) | 790.48 mi (1,272.15 km) |
| Opelousas to Jonesboro (Arkansas) | 374.79 mi (603.16 km) |
| Opelousas to Joplin (Missouri) | 473.39 mi (761.85 km) |
| Opelousas to Joppatowne (Maryland) | 1,079.40 mi (1,737.13 km) |
| Opelousas to Juana Díaz (Puerto Rico) | 1,820.22 mi (2,929.35 km) |
| Opelousas to Junction City (Kansas) | 646.55 mi (1,040.53 km) |
| Opelousas to Juneau (Alaska) | 2,756.09 mi (4,435.50 km) |
| Opelousas to Jupiter (Florida) | 766.29 mi (1,233.23 km) |
| Opelousas to Jupiter Farms (Florida) | 760.17 mi (1,223.38 km) |
| Opelousas to Jurupa Valley (California) | 1,498.73 mi (2,411.97 km) |
| Opelousas to Justice (Illinois) | 810.63 mi (1,304.59 km) |
| Opelousas to Kahului (Hawaii) | 4,011.68 mi (6,456.17 km) |
| Opelousas to Kailua (Hawaii) | 4,072.72 mi (6,554.42 km) |
| Opelousas to Kalamazoo (Michigan) | 887.81 mi (1,428.80 km) |
