| Porsgrunn to Wichita (Kansas) | 4,565.25 mi (7,347.06 km) |
| Porsgrunn to Wichita Falls (Texas) | 4,822.23 mi (7,760.62 km) |
| Porsgrunn to Wickliffe (Ohio) | 3,855.96 mi (6,205.57 km) |
| Porsgrunn to Wildomar (California) | 5,348.09 mi (8,606.92 km) |
| Porsgrunn to Wildwood (Florida) | 4,590.89 mi (7,388.32 km) |
| Porsgrunn to Wildwood (Missouri) | 4,313.26 mi (6,941.52 km) |
| Porsgrunn to Wilkes-Barre (Pennsylvania) | 3,693.05 mi (5,943.39 km) |
| Porsgrunn to Wilkinsburg (Pennsylvania) | 3,867.45 mi (6,224.06 km) |
| Porsgrunn to Williamsburg (Virginia) | 3,935.57 mi (6,333.69 km) |
| Porsgrunn to Williamsport (Pennsylvania) | 3,731.74 mi (6,005.65 km) |
| Porsgrunn to Williamstown (New Jersey) | 3,746.53 mi (6,029.46 km) |
| Porsgrunn to Willimantic (Connecticut) | 3,546.02 mi (5,706.77 km) |
| Porsgrunn to Williston (North Dakota) | 4,127.51 mi (6,642.59 km) |
| Porsgrunn to Willmar (Minnesota) | 4,072.94 mi (6,554.76 km) |
| Porsgrunn to Willoughby (Ohio) | 3,851.92 mi (6,199.07 km) |
