| Thornton to Myrtle Grove (North Carolina) | 3,814.21 mi (6,138.38 km) |
| Thornton to Nacogdoches (Texas) | 4,596.45 mi (7,397.27 km) |
| Thornton to Nampa (Idaho) | 4,686.58 mi (7,542.31 km) |
| Thornton to Nanakuli (Hawaii) | 7,053.49 mi (11,351.49 km) |
| Thornton to Nanticoke (Pennsylvania) | 3,402.27 mi (5,475.42 km) |
| Thornton to Nanuet (New York) | 3,329.34 mi (5,358.05 km) |
| Thornton to Napa (California) | 5,156.30 mi (8,298.27 km) |
| Thornton to Naperville (Illinois) | 3,838.68 mi (6,177.76 km) |
| Thornton to Naples (Florida) | 4,378.54 mi (7,046.59 km) |
| Thornton to Naranja (Florida) | 4,356.38 mi (7,010.91 km) |
| Thornton to Nashua (New Hampshire) | 3,156.49 mi (5,079.88 km) |
| Thornton to Nashville (Tennessee) | 4,061.32 mi (6,536.07 km) |
| Thornton to Natchez (Mississippi) | 4,475.49 mi (7,202.61 km) |
| Thornton to Natchitoches (Louisiana) | 4,531.14 mi (7,292.17 km) |
| Thornton to National City (California) | 5,326.63 mi (8,572.39 km) |
