| Ottawa to Hameenkyro | 4,381.02 mi (7,050.57 km) |
| Ottawa to Hameenlinna | 4,441.51 mi (7,147.92 km) |
| Ottawa to Hamina | 4,530.38 mi (7,290.94 km) |
| Ottawa to Hanko | 4,453.46 mi (7,167.15 km) |
| Ottawa to Hattula | 4,436.34 mi (7,139.59 km) |
| Ottawa to Haukipudas | 4,278.33 mi (6,885.31 km) |
| Ottawa to Hausjarvi | 4,465.02 mi (7,185.76 km) |
| Ottawa to Heinola | 4,471.99 mi (7,196.97 km) |
| Ottawa to Helsinki | 4,490.56 mi (7,226.85 km) |
| Ottawa to Hollola | 4,468.45 mi (7,191.27 km) |
| Ottawa to Huittinen | 4,387.99 mi (7,061.78 km) |
| Ottawa to Hyvinkaa | 4,467.50 mi (7,189.74 km) |
| Ottawa to Ii | 4,273.02 mi (6,876.76 km) |
| Ottawa to Iisalmi | 4,392.18 mi (7,068.53 km) |
| Ottawa to Ilmajoki | 4,318.18 mi (6,949.44 km) |
