| Thornton to Hicksville (New York) | 3,325.09 mi (5,351.21 km) |
| Thornton to Hidalgo (Texas) | 5,028.84 mi (8,093.13 km) |
| Thornton to High Point (North Carolina) | 3,805.99 mi (6,125.15 km) |
| Thornton to Highland (California) | 5,245.27 mi (8,441.45 km) |
| Thornton to Highland (Illinois) | 4,041.59 mi (6,504.31 km) |
| Thornton to Highland (Indiana) | 3,822.20 mi (6,151.23 km) |
| Thornton to Highland (Utah) | 4,718.70 mi (7,594.02 km) |
| Thornton to Highland City (Florida) | 4,287.26 mi (6,899.68 km) |
| Thornton to Highland Park (Illinois) | 3,804.67 mi (6,123.02 km) |
| Thornton to Highland Park (New Jersey) | 3,372.68 mi (5,427.81 km) |
| Thornton to Highland Springs (Virginia) | 3,625.22 mi (5,834.23 km) |
| Thornton to Highland Village (Texas) | 4,608.50 mi (7,416.67 km) |
| Thornton to Highlands Ranch (Colorado) | 4,544.85 mi (7,314.23 km) |
| Thornton to Hillcrest (California) | 5,227.58 mi (8,412.97 km) |
| Thornton to Hillcrest Heights (Maryland) | 3,549.76 mi (5,712.79 km) |
