| Seal Beach to Johnstown (Pennsylvania) | 2,188.00 mi (3,521.24 km) |
| Seal Beach to Joliet (Illinois) | 1,712.78 mi (2,756.45 km) |
| Seal Beach to Jonesboro (Arkansas) | 1,555.83 mi (2,503.87 km) |
| Seal Beach to Joplin (Missouri) | 1,343.29 mi (2,161.82 km) |
| Seal Beach to Joppatowne (Maryland) | 2,326.44 mi (3,744.05 km) |
| Seal Beach to Juana Díaz (Puerto Rico) | 3,346.04 mi (5,384.93 km) |
| Seal Beach to Junction City (Kansas) | 1,231.90 mi (1,982.55 km) |
| Seal Beach to Juneau (Alaska) | 1,861.74 mi (2,996.18 km) |
| Seal Beach to Jupiter (Florida) | 2,298.92 mi (3,699.75 km) |
| Seal Beach to Jupiter Farms (Florida) | 2,292.77 mi (3,689.86 km) |
| Seal Beach to Jurupa Valley (California) | 38.45 mi (61.88 km) |
| Seal Beach to Justice (Illinois) | 1,731.26 mi (2,786.19 km) |
| Seal Beach to Kahului (Hawaii) | 2,501.72 mi (4,026.13 km) |
| Seal Beach to Kailua (Hawaii) | 2,556.89 mi (4,114.92 km) |
| Seal Beach to Kalamazoo (Michigan) | 1,850.57 mi (2,978.21 km) |
