| Thornton to Marshall (Minnesota) | 3,978.75 mi (6,403.18 km) |
| Thornton to Marshall (Missouri) | 4,153.72 mi (6,684.77 km) |
| Thornton to Marshall (Texas) | 4,536.32 mi (7,300.51 km) |
| Thornton to Marshalltown (Iowa) | 3,996.94 mi (6,432.45 km) |
| Thornton to Marshfield (Wisconsin) | 3,771.60 mi (6,069.81 km) |
| Thornton to Martha Lake (Washington) | 4,599.40 mi (7,402.01 km) |
| Thornton to Martin (Tennessee) | 4,131.86 mi (6,649.58 km) |
| Thornton to Martinez (California) | 5,168.53 mi (8,317.95 km) |
| Thornton to Martinez (Georgia) | 4,011.71 mi (6,456.22 km) |
| Thornton to Martinsburg (West Virginia) | 3,560.26 mi (5,729.68 km) |
| Thornton to Martinsville (Indiana) | 3,887.32 mi (6,256.04 km) |
| Thornton to Martinsville (New Jersey) | 3,373.77 mi (5,429.56 km) |
| Thornton to Martinsville (Virginia) | 3,767.09 mi (6,062.55 km) |
| Thornton to Maryland City (Maryland) | 3,531.07 mi (5,682.71 km) |
| Thornton to Maryland Heights (Missouri) | 4,073.21 mi (6,555.19 km) |
