| Blackburn to Joliet (Illinois) | 3,827.04 mi (6,159.02 km) |
| Blackburn to Jonesboro (Arkansas) | 4,204.54 mi (6,766.55 km) |
| Blackburn to Joplin (Missouri) | 4,283.48 mi (6,893.59 km) |
| Blackburn to Joppatowne (Maryland) | 3,474.32 mi (5,591.38 km) |
| Blackburn to Juana Díaz (Puerto Rico) | 4,163.05 mi (6,699.79 km) |
| Blackburn to Junction City (Kansas) | 4,268.81 mi (6,869.98 km) |
| Blackburn to Juneau (Alaska) | 4,229.73 mi (6,807.09 km) |
| Blackburn to Jupiter (Florida) | 4,245.22 mi (6,832.03 km) |
| Blackburn to Jupiter Farms (Florida) | 4,249.41 mi (6,838.76 km) |
| Blackburn to Jurupa Valley (California) | 5,243.16 mi (8,438.06 km) |
| Blackburn to Justice (Illinois) | 3,804.25 mi (6,122.35 km) |
| Blackburn to Kahului (Hawaii) | 7,052.80 mi (11,350.38 km) |
| Blackburn to Kailua (Hawaii) | 7,039.43 mi (11,328.86 km) |
| Blackburn to Kalamazoo (Michigan) | 3,695.67 mi (5,947.60 km) |
| Blackburn to Kalispell (Montana) | 4,349.75 mi (7,000.25 km) |
