| Fairfax to Joliet (Illinois) | 601.11 mi (967.39 km) |
| Fairfax to Jonesboro (Arkansas) | 763.44 mi (1,228.65 km) |
| Fairfax to Joplin (Missouri) | 943.62 mi (1,518.62 km) |
| Fairfax to Joppatowne (Maryland) | 64.08 mi (103.12 km) |
| Fairfax to Juana Díaz (Puerto Rico) | 1,576.76 mi (2,537.55 km) |
| Fairfax to Junction City (Kansas) | 1,048.73 mi (1,687.77 km) |
| Fairfax to Juneau (Alaska) | 2,817.32 mi (4,534.04 km) |
| Fairfax to Jupiter (Florida) | 840.37 mi (1,352.44 km) |
| Fairfax to Jupiter Farms (Florida) | 841.43 mi (1,354.14 km) |
| Fairfax to Jurupa Valley (California) | 2,240.07 mi (3,605.04 km) |
| Fairfax to Justice (Illinois) | 589.61 mi (948.89 km) |
| Fairfax to Kahului (Hawaii) | 4,759.07 mi (7,658.99 km) |
| Fairfax to Kailua (Hawaii) | 4,806.06 mi (7,734.61 km) |
| Fairfax to Kalamazoo (Michigan) | 494.82 mi (796.34 km) |
| Fairfax to Kalispell (Montana) | 1,942.27 mi (3,125.78 km) |
