| Penafiel to Joliet (Illinois) | 3,979.94 mi (6,405.10 km) |
| Penafiel to Jonesboro (Arkansas) | 4,298.07 mi (6,917.08 km) |
| Penafiel to Joplin (Missouri) | 4,429.12 mi (7,127.99 km) |
| Penafiel to Joppatowne (Maryland) | 3,492.74 mi (5,621.02 km) |
| Penafiel to Juana Díaz (Puerto Rico) | 3,764.77 mi (6,058.81 km) |
| Penafiel to Junction City (Kansas) | 4,461.21 mi (7,179.62 km) |
| Penafiel to Juneau (Alaska) | 4,884.22 mi (7,860.40 km) |
| Penafiel to Jupiter (Florida) | 4,111.43 mi (6,616.71 km) |
| Penafiel to Jupiter Farms (Florida) | 4,116.77 mi (6,625.30 km) |
| Penafiel to Jurupa Valley (California) | 5,568.60 mi (8,961.79 km) |
| Penafiel to Justice (Illinois) | 3,958.02 mi (6,369.81 km) |
| Penafiel to Kahului (Hawaii) | 7,687.32 mi (12,371.55 km) |
| Penafiel to Kailua (Hawaii) | 7,689.12 mi (12,374.44 km) |
| Penafiel to Kalamazoo (Michigan) | 3,839.08 mi (6,178.40 km) |
| Penafiel to Kalispell (Montana) | 4,791.58 mi (7,711.31 km) |
