| Porsgrunn to Smyrna (Delaware) | 3,788.80 mi (6,097.48 km) |
| Porsgrunn to Smyrna (Georgia) | 4,384.82 mi (7,056.68 km) |
| Porsgrunn to Smyrna (Tennessee) | 4,330.90 mi (6,969.90 km) |
| Porsgrunn to Snellville (Georgia) | 4,368.35 mi (7,030.18 km) |
| Porsgrunn to Snoqualmie (Washington) | 4,575.73 mi (7,363.92 km) |
| Porsgrunn to Snyder (Texas) | 4,963.56 mi (7,988.08 km) |
| Porsgrunn to Socastee (South Carolina) | 4,211.29 mi (6,777.42 km) |
| Porsgrunn to Socorro (Texas) | 5,182.06 mi (8,339.71 km) |
| Porsgrunn to Soddy-Daisy (Tennessee) | 4,327.42 mi (6,964.31 km) |
| Porsgrunn to Solana Beach (California) | 5,387.14 mi (8,669.76 km) |
| Porsgrunn to Soledad (California) | 5,264.62 mi (8,472.59 km) |
| Porsgrunn to Solon (Ohio) | 3,866.99 mi (6,223.33 km) |
| Porsgrunn to Somers Point (New Jersey) | 3,753.96 mi (6,041.41 km) |
| Porsgrunn to Somerset (Kentucky) | 4,206.47 mi (6,769.66 km) |
| Porsgrunn to Somerset (New Jersey) | 3,686.65 mi (5,933.09 km) |
