| Castagneto Carducci to Joliet (Illinois) | 4,716.26 mi (7,590.08 km) |
| Castagneto Carducci to Jonesboro (Arkansas) | 5,075.46 mi (8,168.17 km) |
| Castagneto Carducci to Joplin (Missouri) | 5,173.76 mi (8,326.37 km) |
| Castagneto Carducci to Joppatowne (Maryland) | 4,306.64 mi (6,930.87 km) |
| Castagneto Carducci to Juana Díaz (Puerto Rico) | 4,731.74 mi (7,614.99 km) |
| Castagneto Carducci to Junction City (Kansas) | 5,173.58 mi (8,326.07 km) |
| Castagneto Carducci to Juneau (Alaska) | 5,130.68 mi (8,257.04 km) |
| Castagneto Carducci to Jupiter (Florida) | 5,005.37 mi (8,055.37 km) |
| Castagneto Carducci to Jupiter Farms (Florida) | 5,010.27 mi (8,063.25 km) |
| Castagneto Carducci to Jurupa Valley (California) | 6,179.95 mi (9,945.67 km) |
| Castagneto Carducci to Justice (Illinois) | 4,693.57 mi (7,553.57 km) |
| Castagneto Carducci to Kahului (Hawaii) | 7,936.33 mi (12,772.29 km) |
| Castagneto Carducci to Kailua (Hawaii) | 7,915.00 mi (12,737.97 km) |
| Castagneto Carducci to Kalamazoo (Michigan) | 4,580.54 mi (7,371.67 km) |
| Castagneto Carducci to Kalispell (Montana) | 5,292.07 mi (8,516.76 km) |
