| Ostrov to Hameenlinna | 861.70 mi (1,386.77 km) |
| Ostrov to Hamina | 898.82 mi (1,446.50 km) |
| Ostrov to Hanko | 766.70 mi (1,233.89 km) |
| Ostrov to Hattula | 863.23 mi (1,389.24 km) |
| Ostrov to Haukipudas | 1,120.45 mi (1,803.19 km) |
| Ostrov to Hausjarvi | 861.72 mi (1,386.80 km) |
| Ostrov to Heinola | 905.08 mi (1,456.59 km) |
| Ostrov to Helsinki | 826.70 mi (1,330.45 km) |
| Ostrov to Hollola | 882.77 mi (1,420.67 km) |
| Ostrov to Huittinen | 839.42 mi (1,350.92 km) |
| Ostrov to Hyvinkaa | 849.65 mi (1,367.38 km) |
| Ostrov to Ii | 1,128.80 mi (1,816.62 km) |
| Ostrov to Iisalmi | 1,056.56 mi (1,700.36 km) |
| Ostrov to Ilmajoki | 931.66 mi (1,499.37 km) |
| Ostrov to Imatra | 966.22 mi (1,554.98 km) |
