| Wilmington to Johnstown (Pennsylvania) | 426.37 mi (686.18 km) |
| Wilmington to Joliet (Illinois) | 752.94 mi (1,211.74 km) |
| Wilmington to Jonesboro (Arkansas) | 731.85 mi (1,177.80 km) |
| Wilmington to Joplin (Missouri) | 952.39 mi (1,532.72 km) |
| Wilmington to Joppatowne (Maryland) | 369.72 mi (595.00 km) |
| Wilmington to Juana Díaz (Puerto Rico) | 1,318.58 mi (2,122.04 km) |
| Wilmington to Junction City (Kansas) | 1,100.67 mi (1,771.36 km) |
| Wilmington to Juneau (Alaska) | 3,040.44 mi (4,893.12 km) |
| Wilmington to Jupiter (Florida) | 520.76 mi (838.08 km) |
| Wilmington to Jupiter Farms (Florida) | 522.25 mi (840.48 km) |
| Wilmington to Jurupa Valley (California) | 2,250.03 mi (3,621.07 km) |
| Wilmington to Justice (Illinois) | 750.61 mi (1,207.99 km) |
| Wilmington to Kahului (Hawaii) | 4,788.54 mi (7,706.40 km) |
| Wilmington to Kailua (Hawaii) | 4,841.98 mi (7,792.42 km) |
| Wilmington to Kalamazoo (Michigan) | 695.88 mi (1,119.92 km) |
