| Willebroek to Joliet (Illinois) | 4,168.56 mi (6,708.65 km) |
| Willebroek to Jonesboro (Arkansas) | 4,544.08 mi (7,312.99 km) |
| Willebroek to Joplin (Missouri) | 4,625.24 mi (7,443.61 km) |
| Willebroek to Joppatowne (Maryland) | 3,806.62 mi (6,126.16 km) |
| Willebroek to Juana Díaz (Puerto Rico) | 4,428.65 mi (7,127.22 km) |
| Willebroek to Junction City (Kansas) | 4,611.48 mi (7,421.46 km) |
| Willebroek to Juneau (Alaska) | 4,517.58 mi (7,270.34 km) |
| Willebroek to Jupiter (Florida) | 4,562.98 mi (7,343.41 km) |
| Willebroek to Jupiter Farms (Florida) | 4,567.34 mi (7,350.43 km) |
| Willebroek to Jurupa Valley (California) | 5,581.55 mi (8,982.64 km) |
| Willebroek to Justice (Illinois) | 4,145.77 mi (6,671.97 km) |
| Willebroek to Kahului (Hawaii) | 7,331.45 mi (11,798.83 km) |
| Willebroek to Kailua (Hawaii) | 7,313.40 mi (11,769.78 km) |
| Willebroek to Kalamazoo (Michigan) | 4,036.68 mi (6,496.40 km) |
| Willebroek to Kalispell (Montana) | 4,679.65 mi (7,531.18 km) |
