| Penafiel to Iselin (New Jersey) | 3,361.74 mi (5,410.21 km) |
| Penafiel to Isla Vista (California) | 5,646.17 mi (9,086.63 km) |
| Penafiel to Issaquah (Washington) | 5,089.18 mi (8,190.24 km) |
| Penafiel to Ithaca (New York) | 3,414.18 mi (5,494.59 km) |
| Penafiel to Ives Estates (Florida) | 4,152.17 mi (6,682.27 km) |
| Penafiel to Jackson (Michigan) | 3,786.05 mi (6,093.06 km) |
| Penafiel to Jackson (Mississippi) | 4,408.44 mi (7,094.69 km) |
| Penafiel to Jackson (Missouri) | 4,192.72 mi (6,747.53 km) |
| Penafiel to Jackson (Tennessee) | 4,216.80 mi (6,786.29 km) |
| Penafiel to Jackson (Wyoming) | 4,865.45 mi (7,830.18 km) |
| Penafiel to Jacksonville (Alabama) | 4,135.67 mi (6,655.72 km) |
| Penafiel to Jacksonville (Arkansas) | 4,402.05 mi (7,084.42 km) |
| Penafiel to Jacksonville (Florida) | 4,061.43 mi (6,536.23 km) |
| Penafiel to Jacksonville (Illinois) | 4,135.95 mi (6,656.18 km) |
| Penafiel to Jacksonville (North Carolina) | 3,691.81 mi (5,941.39 km) |
