| Portici to Imatra | 1,532.49 mi (2,466.30 km) |
| Portici to Jakobstad | 1,614.55 mi (2,598.36 km) |
| Portici to Jamsa | 1,522.88 mi (2,450.84 km) |
| Portici to Janakkala | 1,455.44 mi (2,342.31 km) |
| Portici to Jarvenpaa | 1,433.10 mi (2,306.35 km) |
| Portici to Joensuu | 1,633.25 mi (2,628.46 km) |
| Portici to Joutseno | 1,524.48 mi (2,453.42 km) |
| Portici to Jyvaskyla | 1,553.75 mi (2,500.52 km) |
| Portici to Jyvaskylan Maalaiskunta | 1,556.76 mi (2,505.36 km) |
| Portici to Kaarina | 1,395.47 mi (2,245.79 km) |
| Portici to Kajaani | 1,704.33 mi (2,742.86 km) |
| Portici to Kalajoki | 1,665.30 mi (2,680.04 km) |
| Portici to Kangasala | 1,483.60 mi (2,387.62 km) |
| Portici to Kankaanpaa | 1,488.16 mi (2,394.96 km) |
| Portici to Karhula | 1,462.49 mi (2,353.64 km) |
