| Porsgrunn to Didymoteicho | 1,425.27 mi (2,293.76 km) |
| Porsgrunn to Drama | 1,389.43 mi (2,236.08 km) |
| Porsgrunn to Drapetsona | 1,587.77 mi (2,555.26 km) |
| Porsgrunn to Edessa | 1,374.09 mi (2,211.38 km) |
| Porsgrunn to Efkarpia | 1,397.31 mi (2,248.75 km) |
| Porsgrunn to Epanomi | 1,413.65 mi (2,275.04 km) |
| Porsgrunn to Ermoupoli | 1,644.27 mi (2,646.20 km) |
| Porsgrunn to Evosmos | 1,397.50 mi (2,249.06 km) |
| Porsgrunn to Farsala | 1,479.09 mi (2,380.37 km) |
| Porsgrunn to Florina | 1,364.47 mi (2,195.90 km) |
| Porsgrunn to Galatsi | 1,585.34 mi (2,551.37 km) |
| Porsgrunn to Gazi | 1,784.84 mi (2,872.43 km) |
| Porsgrunn to Gerakas | 1,586.00 mi (2,552.42 km) |
| Porsgrunn to Giannitsa | 1,381.15 mi (2,222.75 km) |
| Porsgrunn to Glyfada | 1,595.17 mi (2,567.18 km) |
