| Knokke-Heist to Joliet (Illinois) | 4,118.61 mi (6,628.26 km) |
| Knokke-Heist to Jonesboro (Arkansas) | 4,493.83 mi (7,232.13 km) |
| Knokke-Heist to Joplin (Missouri) | 4,575.35 mi (7,363.32 km) |
| Knokke-Heist to Joppatowne (Maryland) | 3,756.17 mi (6,044.98 km) |
| Knokke-Heist to Juana Díaz (Puerto Rico) | 4,383.16 mi (7,054.02 km) |
| Knokke-Heist to Junction City (Kansas) | 4,562.04 mi (7,341.89 km) |
| Knokke-Heist to Juneau (Alaska) | 4,482.03 mi (7,213.13 km) |
| Knokke-Heist to Jupiter (Florida) | 4,513.12 mi (7,263.16 km) |
| Knokke-Heist to Jupiter Farms (Florida) | 4,517.47 mi (7,270.17 km) |
| Knokke-Heist to Jurupa Valley (California) | 5,534.77 mi (8,907.35 km) |
| Knokke-Heist to Justice (Illinois) | 4,095.82 mi (6,591.59 km) |
| Knokke-Heist to Kahului (Hawaii) | 7,298.20 mi (11,745.32 km) |
| Knokke-Heist to Kailua (Hawaii) | 7,281.04 mi (11,717.70 km) |
| Knokke-Heist to Kalamazoo (Michigan) | 3,986.63 mi (6,415.86 km) |
| Knokke-Heist to Kalispell (Montana) | 4,635.27 mi (7,459.74 km) |
