| Gaithersburg to Hameenkyro | 4,196.83 mi (6,754.15 km) |
| Gaithersburg to Hameenlinna | 4,255.18 mi (6,848.05 km) |
| Gaithersburg to Hamina | 4,349.26 mi (6,999.46 km) |
| Gaithersburg to Hanko | 4,250.96 mi (6,841.26 km) |
| Gaithersburg to Hattula | 4,250.28 mi (6,840.16 km) |
| Gaithersburg to Haukipudas | 4,136.23 mi (6,656.62 km) |
| Gaithersburg to Hausjarvi | 4,278.56 mi (6,885.68 km) |
| Gaithersburg to Heinola | 4,292.84 mi (6,908.65 km) |
| Gaithersburg to Helsinki | 4,297.92 mi (6,916.84 km) |
| Gaithersburg to Hollola | 4,285.53 mi (6,896.90 km) |
| Gaithersburg to Huittinen | 4,197.69 mi (6,755.53 km) |
| Gaithersburg to Hyvinkaa | 4,278.97 mi (6,886.33 km) |
| Gaithersburg to Ii | 4,132.34 mi (6,650.36 km) |
| Gaithersburg to Iisalmi | 4,239.54 mi (6,822.88 km) |
| Gaithersburg to Ilmajoki | 4,143.08 mi (6,667.64 km) |
