| Porsgrunn to Sremska Kamenica | 1,048.93 mi (1,688.08 km) |
| Porsgrunn to Sremska Mitrovica | 1,061.47 mi (1,708.27 km) |
| Porsgrunn to Sremski Karlovci | 1,051.85 mi (1,692.78 km) |
| Porsgrunn to Stara Pazova | 1,069.84 mi (1,721.75 km) |
| Porsgrunn to Subotica | 989.08 mi (1,591.77 km) |
| Porsgrunn to Surcin | 1,083.70 mi (1,744.05 km) |
| Porsgrunn to Surdulica | 1,252.95 mi (2,016.42 km) |
| Porsgrunn to Svilajnac | 1,137.41 mi (1,830.48 km) |
| Porsgrunn to Svrljig | 1,205.54 mi (1,940.12 km) |
| Porsgrunn to Temerin | 1,036.97 mi (1,668.83 km) |
| Porsgrunn to Titel | 1,057.83 mi (1,702.41 km) |
| Porsgrunn to Topola | 1,125.90 mi (1,811.97 km) |
| Porsgrunn to Trgoviste | 1,273.82 mi (2,050.02 km) |
| Porsgrunn to Trstenik | 1,172.52 mi (1,886.99 km) |
| Porsgrunn to Tutin | 1,202.54 mi (1,935.30 km) |
