| Louvain-la-Neuve to Joliet (Illinois) | 4,187.67 mi (6,739.41 km) |
| Louvain-la-Neuve to Jonesboro (Arkansas) | 4,562.10 mi (7,342.00 km) |
| Louvain-la-Neuve to Joplin (Missouri) | 4,644.52 mi (7,474.63 km) |
| Louvain-la-Neuve to Joppatowne (Maryland) | 3,822.27 mi (6,151.35 km) |
| Louvain-la-Neuve to Juana Díaz (Puerto Rico) | 4,433.06 mi (7,134.33 km) |
| Louvain-la-Neuve to Junction City (Kansas) | 4,631.78 mi (7,454.13 km) |
| Louvain-la-Neuve to Juneau (Alaska) | 4,545.35 mi (7,315.04 km) |
| Louvain-la-Neuve to Jupiter (Florida) | 4,575.27 mi (7,363.19 km) |
| Louvain-la-Neuve to Jupiter Farms (Florida) | 4,579.67 mi (7,370.27 km) |
| Louvain-la-Neuve to Jurupa Valley (California) | 5,605.08 mi (9,020.51 km) |
| Louvain-la-Neuve to Justice (Illinois) | 4,164.89 mi (6,702.74 km) |
| Louvain-la-Neuve to Kahului (Hawaii) | 7,359.50 mi (11,843.97 km) |
| Louvain-la-Neuve to Kailua (Hawaii) | 7,341.52 mi (11,815.04 km) |
| Louvain-la-Neuve to Kalamazoo (Michigan) | 4,055.48 mi (6,526.66 km) |
| Louvain-la-Neuve to Kalispell (Montana) | 4,704.77 mi (7,571.60 km) |
