| Gahanna to Hoddesdon | 3,845.63 mi (6,188.94 km) |
| Gahanna to Holbeach | 3,818.93 mi (6,145.98 km) |
| Gahanna to Holborn | 3,848.20 mi (6,193.09 km) |
| Gahanna to Hollinwood | 3,717.62 mi (5,982.93 km) |
| Gahanna to Holyhead | 3,626.08 mi (5,835.60 km) |
| Gahanna to Holywell | 3,681.77 mi (5,925.23 km) |
| Gahanna to Honiton | 3,743.96 mi (6,025.33 km) |
| Gahanna to Horbury | 3,736.71 mi (6,013.66 km) |
| Gahanna to Horley | 3,855.33 mi (6,204.55 km) |
| Gahanna to Hornchurch | 3,860.11 mi (6,212.25 km) |
| Gahanna to Horndean | 3,829.48 mi (6,162.95 km) |
| Gahanna to Hornsey | 3,846.22 mi (6,189.90 km) |
| Gahanna to Horsell | 3,835.63 mi (6,172.85 km) |
| Gahanna to Horsforth | 3,729.07 mi (6,001.36 km) |
| Gahanna to Horsham | 3,852.29 mi (6,199.67 km) |
