| Owings Mills to Hoddesdon | 3,630.98 mi (5,843.50 km) |
| Owings Mills to Holbeach | 3,609.54 mi (5,808.99 km) |
| Owings Mills to Holborn | 3,632.27 mi (5,845.58 km) |
| Owings Mills to Hollinwood | 3,509.58 mi (5,648.13 km) |
| Owings Mills to Holyhead | 3,414.46 mi (5,495.05 km) |
| Owings Mills to Holywell | 3,471.35 mi (5,586.60 km) |
| Owings Mills to Honiton | 3,521.01 mi (5,666.51 km) |
| Owings Mills to Horbury | 3,530.02 mi (5,681.02 km) |
| Owings Mills to Horley | 3,637.64 mi (5,854.21 km) |
| Owings Mills to Hornchurch | 3,644.74 mi (5,865.64 km) |
| Owings Mills to Horndean | 3,609.56 mi (5,809.03 km) |
| Owings Mills to Hornsey | 3,630.61 mi (5,842.91 km) |
| Owings Mills to Horsell | 3,618.24 mi (5,822.99 km) |
| Owings Mills to Horsforth | 3,523.22 mi (5,670.08 km) |
| Owings Mills to Horsham | 3,633.88 mi (5,848.16 km) |
