| Cluj-Napoca to Joliet (Illinois) | 5,041.05 mi (8,112.79 km) |
| Cluj-Napoca to Jonesboro (Arkansas) | 5,428.64 mi (8,736.55 km) |
| Cluj-Napoca to Joplin (Missouri) | 5,494.06 mi (8,841.83 km) |
| Cluj-Napoca to Joppatowne (Maryland) | 4,712.33 mi (7,583.77 km) |
| Cluj-Napoca to Juana Díaz (Puerto Rico) | 5,320.85 mi (8,563.08 km) |
| Cluj-Napoca to Junction City (Kansas) | 5,464.71 mi (8,794.60 km) |
| Cluj-Napoca to Juneau (Alaska) | 5,056.88 mi (8,138.26 km) |
| Cluj-Napoca to Jupiter (Florida) | 5,480.78 mi (8,820.46 km) |
| Cluj-Napoca to Jupiter Farms (Florida) | 5,485.09 mi (8,827.40 km) |
| Cluj-Napoca to Jurupa Valley (California) | 6,353.91 mi (10,225.63 km) |
| Cluj-Napoca to Justice (Illinois) | 5,018.31 mi (8,076.19 km) |
| Cluj-Napoca to Kahului (Hawaii) | 7,763.45 mi (12,494.06 km) |
| Cluj-Napoca to Kailua (Hawaii) | 7,726.76 mi (12,435.02 km) |
| Cluj-Napoca to Kalamazoo (Michigan) | 4,913.61 mi (7,907.69 km) |
| Cluj-Napoca to Kalispell (Montana) | 5,402.87 mi (8,695.07 km) |
