| Porsgrunn to Nafplio | 1,598.97 mi (2,573.30 km) |
| Porsgrunn to Naousa | 1,385.28 mi (2,229.39 km) |
| Porsgrunn to Nea Alikarnassos | 1,787.44 mi (2,876.61 km) |
| Porsgrunn to Nea Artaki | 1,550.60 mi (2,495.44 km) |
| Porsgrunn to Nea Erythraia | 1,582.15 mi (2,546.22 km) |
| Porsgrunn to Nea Filadelfeia | 1,583.80 mi (2,548.89 km) |
| Porsgrunn to Nea Ionia | 1,584.26 mi (2,549.62 km) |
| Porsgrunn to Nea Makri | 1,585.08 mi (2,550.93 km) |
| Porsgrunn to Nea Michaniona | 1,409.96 mi (2,269.12 km) |
| Porsgrunn to Nea Moudania | 1,432.13 mi (2,304.79 km) |
| Porsgrunn to Nea Smyrni | 1,589.13 mi (2,557.47 km) |
| Porsgrunn to Neo Psychiko | 1,587.02 mi (2,554.06 km) |
| Porsgrunn to Nikaia | 1,586.60 mi (2,553.38 km) |
| Porsgrunn to Oraiokastro | 1,393.47 mi (2,242.57 km) |
| Porsgrunn to Orestiada | 1,416.61 mi (2,279.81 km) |
