| Porsgrunn to Storm Lake (Iowa) | 4,217.24 mi (6,786.99 km) |
| Porsgrunn to Storrs (Connecticut) | 3,542.58 mi (5,701.23 km) |
| Porsgrunn to Stoughton (Wisconsin) | 4,025.24 mi (6,477.99 km) |
| Porsgrunn to Stow (Ohio) | 3,878.21 mi (6,241.38 km) |
| Porsgrunn to Streamwood (Illinois) | 4,043.57 mi (6,507.50 km) |
| Porsgrunn to Streator (Illinois) | 4,113.43 mi (6,619.92 km) |
| Porsgrunn to Streetsboro (Ohio) | 3,871.93 mi (6,231.27 km) |
| Porsgrunn to Strongsville (Ohio) | 3,883.55 mi (6,249.96 km) |
| Porsgrunn to Stuart (Florida) | 4,621.24 mi (7,437.17 km) |
| Porsgrunn to Stuarts Draft (Virginia) | 3,972.21 mi (6,392.65 km) |
| Porsgrunn to Sturgis (Michigan) | 3,970.49 mi (6,389.88 km) |
| Porsgrunn to Suamico (Wisconsin) | 3,896.19 mi (6,270.31 km) |
| Porsgrunn to Sudley (Virginia) | 3,879.14 mi (6,242.87 km) |
| Porsgrunn to Suffern (New York) | 3,642.48 mi (5,862.01 km) |
| Porsgrunn to Suffolk (Virginia) | 3,964.73 mi (6,380.62 km) |
