| Ada to Heckmondwike | 1,109.66 mi (1,785.83 km) |
| Ada to Hednesford | 1,100.51 mi (1,771.11 km) |
| Ada to Helensburgh | 1,282.05 mi (2,063.26 km) |
| Ada to Hellesdon | 970.46 mi (1,561.81 km) |
| Ada to Helston | 1,206.11 mi (1,941.05 km) |
| Ada to Hemel Hempstead | 1,019.75 mi (1,641.13 km) |
| Ada to Hemsworth | 1,095.01 mi (1,762.25 km) |
| Ada to Hendon | 1,006.56 mi (1,619.90 km) |
| Ada to Henley on Thames | 1,033.86 mi (1,663.83 km) |
| Ada to Hereford | 1,117.72 mi (1,798.79 km) |
| Ada to Herne Bay | 946.43 mi (1,523.13 km) |
| Ada to Hersham | 1,010.05 mi (1,625.51 km) |
| Ada to Hertford | 1,004.49 mi (1,616.57 km) |
| Ada to Hessle | 1,063.00 mi (1,710.73 km) |
| Ada to Heswall | 1,156.66 mi (1,861.47 km) |
