| Gaithersburg to Haaren | 3,875.12 mi (6,236.40 km) |
| Gaithersburg to Haarlem | 3,831.42 mi (6,166.07 km) |
| Gaithersburg to Hardenberg | 3,904.22 mi (6,283.23 km) |
| Gaithersburg to Harderwijk | 3,870.85 mi (6,229.54 km) |
| Gaithersburg to Hardinxveld-Giessendam | 3,853.64 mi (6,201.84 km) |
| Gaithersburg to Haren | 3,887.92 mi (6,257.00 km) |
| Gaithersburg to Harenkarspel | 3,828.04 mi (6,160.64 km) |
| Gaithersburg to Harlingen | 3,842.58 mi (6,184.04 km) |
| Gaithersburg to Hattem | 3,885.43 mi (6,252.99 km) |
| Gaithersburg to Heemskerk | 3,829.40 mi (6,162.82 km) |
| Gaithersburg to Heemstede | 3,831.60 mi (6,166.36 km) |
| Gaithersburg to Heerde | 3,886.94 mi (6,255.43 km) |
| Gaithersburg to Heerenveen | 3,867.79 mi (6,224.61 km) |
| Gaithersburg to Heerhugowaard | 3,832.18 mi (6,167.30 km) |
| Gaithersburg to Heerlen | 3,924.07 mi (6,315.17 km) |
