| Milford Haven to Joliet (Illinois) | 3,788.52 mi (6,097.03 km) |
| Milford Haven to Jonesboro (Arkansas) | 4,156.51 mi (6,689.26 km) |
| Milford Haven to Joplin (Missouri) | 4,246.00 mi (6,833.28 km) |
| Milford Haven to Joppatowne (Maryland) | 3,407.85 mi (5,484.41 km) |
| Milford Haven to Juana Díaz (Puerto Rico) | 4,031.82 mi (6,488.58 km) |
| Milford Haven to Junction City (Kansas) | 4,240.58 mi (6,824.55 km) |
| Milford Haven to Juneau (Alaska) | 4,306.64 mi (6,930.86 km) |
| Milford Haven to Jupiter (Florida) | 4,156.08 mi (6,688.57 km) |
| Milford Haven to Jupiter Farms (Florida) | 4,160.48 mi (6,695.65 km) |
| Milford Haven to Jurupa Valley (California) | 5,246.82 mi (8,443.93 km) |
| Milford Haven to Justice (Illinois) | 3,765.76 mi (6,060.41 km) |
| Milford Haven to Kahului (Hawaii) | 7,131.95 mi (11,477.76 km) |
| Milford Haven to Kailua (Hawaii) | 7,122.20 mi (11,462.08 km) |
| Milford Haven to Kalamazoo (Michigan) | 3,654.48 mi (5,881.32 km) |
| Milford Haven to Kalispell (Montana) | 4,375.30 mi (7,041.36 km) |
