| Thornton to Archdale (North Carolina) | 3,808.93 mi (6,129.88 km) |
| Thornton to Arden-Arcade (California) | 5,112.14 mi (8,227.20 km) |
| Thornton to Ardmore (Oklahoma) | 4,552.36 mi (7,326.31 km) |
| Thornton to Ardmore (Pennsylvania) | 3,429.65 mi (5,519.48 km) |
| Thornton to Arecibo (Puerto Rico) | 4,176.80 mi (6,721.91 km) |
| Thornton to Arkadelphia (Arkansas) | 4,405.02 mi (7,089.19 km) |
| Thornton to Arkansas City (Kansas) | 4,398.15 mi (7,078.13 km) |
| Thornton to Arlington (Tennessee) | 4,217.68 mi (6,787.70 km) |
| Thornton to Arlington (Texas) | 4,631.56 mi (7,453.78 km) |
| Thornton to Arlington (Virginia) | 3,553.20 mi (5,718.33 km) |
| Thornton to Arlington (Washington) | 4,578.62 mi (7,368.58 km) |
| Thornton to Arlington Heights (Illinois) | 3,815.18 mi (6,139.93 km) |
| Thornton to Arnold (Maryland) | 3,521.69 mi (5,667.61 km) |
| Thornton to Arnold (Missouri) | 4,083.91 mi (6,572.42 km) |
| Thornton to Arroyo Grande (California) | 5,291.77 mi (8,516.29 km) |
