| Catonsville to Hameenkyro | 4,175.73 mi (6,720.18 km) |
| Catonsville to Hameenlinna | 4,233.99 mi (6,813.94 km) |
| Catonsville to Hamina | 4,328.18 mi (6,965.53 km) |
| Catonsville to Hanko | 4,229.33 mi (6,806.45 km) |
| Catonsville to Hattula | 4,229.09 mi (6,806.07 km) |
| Catonsville to Haukipudas | 4,116.36 mi (6,624.64 km) |
| Catonsville to Hausjarvi | 4,257.36 mi (6,851.56 km) |
| Catonsville to Heinola | 4,271.83 mi (6,874.84 km) |
| Catonsville to Helsinki | 4,276.54 mi (6,882.43 km) |
| Catonsville to Hollola | 4,264.42 mi (6,862.93 km) |
| Catonsville to Huittinen | 4,176.41 mi (6,721.29 km) |
| Catonsville to Hyvinkaa | 4,257.71 mi (6,852.12 km) |
| Catonsville to Ii | 4,112.52 mi (6,618.45 km) |
| Catonsville to Iisalmi | 4,219.31 mi (6,790.32 km) |
| Catonsville to Ilmajoki | 4,122.25 mi (6,634.12 km) |
