| Porsgrunn to Ruzomberok | 793.30 mi (1,276.70 km) |
| Porsgrunn to Sabinov | 828.55 mi (1,333.42 km) |
| Porsgrunn to Sal'a | 826.81 mi (1,330.62 km) |
| Porsgrunn to Samorin | 825.97 mi (1,329.26 km) |
| Porsgrunn to Senec | 814.79 mi (1,311.27 km) |
| Porsgrunn to Senica | 784.29 mi (1,262.19 km) |
| Porsgrunn to Sered' | 815.50 mi (1,312.42 km) |
| Porsgrunn to Skalica | 771.60 mi (1,241.78 km) |
| Porsgrunn to Smizany | 825.69 mi (1,328.81 km) |
| Porsgrunn to Snina | 859.89 mi (1,383.86 km) |
| Porsgrunn to Spisska Nova Ves | 827.21 mi (1,331.27 km) |
| Porsgrunn to Stara L'ubovna | 807.36 mi (1,299.33 km) |
| Porsgrunn to Stara Tura | 783.41 mi (1,260.78 km) |
| Porsgrunn to Stropkov | 835.34 mi (1,344.34 km) |
| Porsgrunn to Stupava | 805.56 mi (1,296.42 km) |
