| Porsgrunn to Dumas (Texas) | 4,806.60 mi (7,735.47 km) |
| Porsgrunn to Dumont (New Jersey) | 3,646.41 mi (5,868.33 km) |
| Porsgrunn to Duncan (Oklahoma) | 4,766.77 mi (7,671.37 km) |
| Porsgrunn to Duncanville (Texas) | 4,847.93 mi (7,801.99 km) |
| Porsgrunn to Dundalk (Maryland) | 3,819.63 mi (6,147.10 km) |
| Porsgrunn to Dunedin (Florida) | 4,659.85 mi (7,499.30 km) |
| Porsgrunn to Dunkirk (New York) | 3,740.25 mi (6,019.35 km) |
| Porsgrunn to Dunmore (Pennsylvania) | 3,675.20 mi (5,914.66 km) |
| Porsgrunn to Dunwoody (Georgia) | 4,373.65 mi (7,038.71 km) |
| Porsgrunn to Durango (Colorado) | 4,885.08 mi (7,861.77 km) |
| Porsgrunn to Durant (Oklahoma) | 4,752.86 mi (7,648.99 km) |
| Porsgrunn to Durham (North Carolina) | 4,080.15 mi (6,566.37 km) |
| Porsgrunn to Dyer (Indiana) | 4,052.04 mi (6,521.12 km) |
| Porsgrunn to Dyersburg (Tennessee) | 4,417.21 mi (7,108.82 km) |
| Porsgrunn to Eagan (Minnesota) | 4,036.04 mi (6,495.37 km) |
