| Thornton to Hazleton (Pennsylvania) | 3,412.62 mi (5,492.08 km) |
| Thornton to Healdsburg (California) | 5,153.30 mi (8,293.43 km) |
| Thornton to Heath (Ohio) | 3,706.18 mi (5,964.53 km) |
| Thornton to Heber (Utah) | 4,701.81 mi (7,566.83 km) |
| Thornton to Helena (Alabama) | 4,211.18 mi (6,777.24 km) |
| Thornton to Helena (Montana) | 4,387.22 mi (7,060.56 km) |
| Thornton to Hemet (California) | 5,261.72 mi (8,467.92 km) |
| Thornton to Henderson (Kentucky) | 4,008.39 mi (6,450.88 km) |
| Thornton to Henderson (Nevada) | 5,069.09 mi (8,157.91 km) |
| Thornton to Henderson (North Carolina) | 3,727.32 mi (5,998.55 km) |
| Thornton to Henderson (Texas) | 4,573.10 mi (7,359.69 km) |
| Thornton to Hendersonville (North Carolina) | 3,935.70 mi (6,333.90 km) |
| Thornton to Hendersonville (Tennessee) | 4,047.49 mi (6,513.80 km) |
| Thornton to Hercules (California) | 5,172.11 mi (8,323.70 km) |
| Thornton to Hereford (Texas) | 4,709.67 mi (7,579.48 km) |
