| Cities | Distance |
|---|---|
| Portici to Glyka Nera | 543.50 mi (874.68 km) |
| Portici to Grevena | 375.91 mi (604.97 km) |
| Portici to Ialysos | 804.00 mi (1,293.91 km) |
| Portici to Ilion | 534.96 mi (860.93 km) |
| Portici to Ilioupoli | 540.28 mi (869.50 km) |
| Portici to Ioannina | 352.48 mi (567.25 km) |
| Portici to Irakleio | 697.70 mi (1,122.83 km) |
| Portici to Irakleio | 537.81 mi (865.52 km) |
| Portici to Kaisariani | 539.69 mi (868.55 km) |
| Portici to Kalamaria | 451.06 mi (725.90 km) |
| Portici to Kalamata | 492.35 mi (792.36 km) |
| Portici to Kallithea | 537.33 mi (864.74 km) |
| Portici to Kalymnos | 728.66 mi (1,172.66 km) |
| Portici to Kalyvia Thorikou | 551.43 mi (887.44 km) |
| Portici to Kamatero | 534.82 mi (860.70 km) |