| Porsgrunn to Sestao | 1,218.08 mi (1,960.31 km) |
| Porsgrunn to Sevilla | 1,665.97 mi (2,681.13 km) |
| Porsgrunn to Sevilla La Nueva | 1,428.08 mi (2,298.28 km) |
| Porsgrunn to Silla | 1,435.43 mi (2,310.11 km) |
| Porsgrunn to Silleda | 1,367.95 mi (2,201.51 km) |
| Porsgrunn to Sitges | 1,281.96 mi (2,063.12 km) |
| Porsgrunn to Socuellamos | 1,475.66 mi (2,374.85 km) |
| Porsgrunn to Soller | 1,371.68 mi (2,207.51 km) |
| Porsgrunn to Solsona | 1,234.23 mi (1,986.31 km) |
| Porsgrunn to Son Servera | 1,375.45 mi (2,213.57 km) |
| Porsgrunn to Sonseca | 1,468.74 mi (2,363.72 km) |
| Porsgrunn to Sopelana | 1,213.06 mi (1,952.23 km) |
| Porsgrunn to Soria | 1,308.21 mi (2,105.36 km) |
| Porsgrunn to Suances | 1,230.53 mi (1,980.35 km) |
| Porsgrunn to Sueca | 1,444.74 mi (2,325.08 km) |
