| Ostrow Mazowiecka to Hameenkyro | 612.22 mi (985.28 km) |
| Ostrow Mazowiecka to Hameenlinna | 574.29 mi (924.23 km) |
| Ostrow Mazowiecka to Hamina | 572.64 mi (921.57 km) |
| Ostrow Mazowiecka to Hanko | 487.65 mi (784.80 km) |
| Ostrow Mazowiecka to Hattula | 577.86 mi (929.97 km) |
| Ostrow Mazowiecka to Haukipudas | 864.05 mi (1,390.56 km) |
| Ostrow Mazowiecka to Hausjarvi | 564.30 mi (908.16 km) |
| Ostrow Mazowiecka to Heinola | 600.57 mi (966.52 km) |
| Ostrow Mazowiecka to Helsinki | 522.15 mi (840.32 km) |
| Ostrow Mazowiecka to Hollola | 581.75 mi (936.24 km) |
| Ostrow Mazowiecka to Huittinen | 579.43 mi (932.50 km) |
| Ostrow Mazowiecka to Hyvinkaa | 552.52 mi (889.20 km) |
| Ostrow Mazowiecka to Ii | 873.25 mi (1,405.35 km) |
| Ostrow Mazowiecka to Iisalmi | 767.76 mi (1,235.59 km) |
| Ostrow Mazowiecka to Ilmajoki | 686.78 mi (1,105.26 km) |
