| Istrana to Imatra | 1,263.67 mi (2,033.69 km) |
| Istrana to Jakobstad | 1,308.64 mi (2,106.06 km) |
| Istrana to Jamsa | 1,233.82 mi (1,985.64 km) |
| Istrana to Janakkala | 1,168.55 mi (1,880.60 km) |
| Istrana to Jarvenpaa | 1,150.75 mi (1,851.96 km) |
| Istrana to Joensuu | 1,359.68 mi (2,188.20 km) |
| Istrana to Joutseno | 1,254.84 mi (2,019.47 km) |
| Istrana to Jyvaskyla | 1,265.35 mi (2,036.38 km) |
| Istrana to Jyvaskylan Maalaiskunta | 1,268.13 mi (2,040.86 km) |
| Istrana to Kaarina | 1,099.63 mi (1,769.69 km) |
| Istrana to Kajaani | 1,414.48 mi (2,276.39 km) |
| Istrana to Kalajoki | 1,362.01 mi (2,191.94 km) |
| Istrana to Kangasala | 1,191.33 mi (1,917.26 km) |
| Istrana to Kankaanpaa | 1,187.07 mi (1,910.40 km) |
| Istrana to Karhula | 1,189.22 mi (1,913.87 km) |
