| Porsgrunn to Iselin (New Jersey) | 3,677.23 mi (5,917.94 km) |
| Porsgrunn to Isla Vista (California) | 5,359.57 mi (8,625.39 km) |
| Porsgrunn to Issaquah (Washington) | 4,578.84 mi (7,368.92 km) |
| Porsgrunn to Ithaca (New York) | 3,650.14 mi (5,874.32 km) |
| Porsgrunn to Ives Estates (Florida) | 4,689.92 mi (7,547.70 km) |
| Porsgrunn to Jackson (Michigan) | 3,914.42 mi (6,299.65 km) |
| Porsgrunn to Jackson (Mississippi) | 4,658.02 mi (7,496.36 km) |
| Porsgrunn to Jackson (Missouri) | 4,349.94 mi (7,000.55 km) |
| Porsgrunn to Jackson (Tennessee) | 4,422.47 mi (7,117.27 km) |
| Porsgrunn to Jackson (Wyoming) | 4,582.97 mi (7,375.57 km) |
| Porsgrunn to Jacksonville (Alabama) | 4,428.41 mi (7,126.83 km) |
| Porsgrunn to Jacksonville (Arkansas) | 4,570.37 mi (7,355.29 km) |
| Porsgrunn to Jacksonville (Florida) | 4,490.72 mi (7,227.12 km) |
| Porsgrunn to Jacksonville (Illinois) | 4,234.74 mi (6,815.15 km) |
| Porsgrunn to Jacksonville (North Carolina) | 4,098.69 mi (6,596.20 km) |
