| Gaithersburg to Haaren | 3,932.20 mi (6,328.27 km) |
| Gaithersburg to Hadamar | 4,018.96 mi (6,467.89 km) |
| Gaithersburg to Hagen | 3,970.58 mi (6,390.03 km) |
| Gaithersburg to Hagen im Bremischen | 3,960.90 mi (6,374.45 km) |
| Gaithersburg to Hagenow | 4,054.75 mi (6,525.49 km) |
| Gaithersburg to Haiger | 4,016.74 mi (6,464.32 km) |
| Gaithersburg to Haigerloch | 4,111.24 mi (6,616.41 km) |
| Gaithersburg to Hainichen | 4,202.97 mi (6,764.03 km) |
| Gaithersburg to Halberstadt | 4,094.31 mi (6,589.16 km) |
| Gaithersburg to Haldensleben | 4,096.92 mi (6,593.36 km) |
| Gaithersburg to Hallbergmoos | 4,232.76 mi (6,811.97 km) |
| Gaithersburg to Halle | 3,985.76 mi (6,414.45 km) |
| Gaithersburg to Halle | 4,142.35 mi (6,666.47 km) |
| Gaithersburg to Halle-Neustadt | 4,140.61 mi (6,663.67 km) |
| Gaithersburg to Hallstadt | 4,147.44 mi (6,674.66 km) |
