| Porsgrunn to Superior (Colorado) | 4,652.31 mi (7,487.18 km) |
| Porsgrunn to Superior (Wisconsin) | 3,900.79 mi (6,277.71 km) |
| Porsgrunn to Surprise (Arizona) | 5,223.95 mi (8,407.13 km) |
| Porsgrunn to Susanville (California) | 4,997.33 mi (8,042.43 km) |
| Porsgrunn to Sussex (Wisconsin) | 3,983.32 mi (6,410.53 km) |
| Porsgrunn to Suwanee (Georgia) | 4,359.48 mi (7,015.90 km) |
| Porsgrunn to Swansea (Illinois) | 4,293.83 mi (6,910.25 km) |
| Porsgrunn to Sweetwater (Florida) | 4,707.19 mi (7,575.49 km) |
| Porsgrunn to Sweetwater (Texas) | 4,963.30 mi (7,987.65 km) |
| Porsgrunn to Sycamore (Illinois) | 4,060.37 mi (6,534.54 km) |
| Porsgrunn to Sylacauga (Alabama) | 4,480.84 mi (7,211.22 km) |
| Porsgrunn to Sylvania (Ohio) | 3,921.67 mi (6,311.32 km) |
| Porsgrunn to Syosset (New York) | 3,636.86 mi (5,852.96 km) |
| Porsgrunn to Syracuse (New York) | 3,606.88 mi (5,804.71 km) |
| Porsgrunn to Syracuse (Utah) | 4,759.48 mi (7,659.64 km) |
