| Harpenden to Artesia (California) | 5,424.40 mi (8,729.72 km) |
| Harpenden to Artesia (New Mexico) | 5,011.82 mi (8,065.74 km) |
| Harpenden to Artondale (Washington) | 4,786.92 mi (7,703.81 km) |
| Harpenden to Arvada (Colorado) | 4,665.69 mi (7,508.70 km) |
| Harpenden to Arvin (California) | 5,372.06 mi (8,645.50 km) |
| Harpenden to Asbury Lake (Florida) | 4,266.62 mi (6,866.46 km) |
| Harpenden to Asbury Park (New Jersey) | 3,467.04 mi (5,579.66 km) |
| Harpenden to Ashburn (Virginia) | 3,660.91 mi (5,891.67 km) |
| Harpenden to Asheboro (North Carolina) | 3,909.77 mi (6,292.17 km) |
| Harpenden to Asheville (North Carolina) | 4,028.11 mi (6,482.62 km) |
| Harpenden to Ashland (California) | 5,327.58 mi (8,573.91 km) |
| Harpenden to Ashland (Kentucky) | 3,894.89 mi (6,268.21 km) |
| Harpenden to Ashland (Ohio) | 3,770.61 mi (6,068.21 km) |
| Harpenden to Ashland (Oregon) | 5,083.16 mi (8,180.56 km) |
| Harpenden to Ashtabula (Ohio) | 3,665.30 mi (5,898.72 km) |
