| Alton to Dixon (Illinois) | 3,998.88 mi (6,435.58 km) |
| Alton to Dobbs Ferry (New York) | 3,415.70 mi (5,497.04 km) |
| Alton to Doctor Phillips (Florida) | 4,317.79 mi (6,948.81 km) |
| Alton to Dodge City (Kansas) | 4,593.72 mi (7,392.89 km) |
| Alton to Dolton (Illinois) | 3,936.70 mi (6,335.50 km) |
| Alton to Donna (Texas) | 5,120.48 mi (8,240.62 km) |
| Alton to Dorado (Puerto Rico) | 4,166.88 mi (6,705.94 km) |
| Alton to Doral (Florida) | 4,400.62 mi (7,082.12 km) |
| Alton to Doraville (Georgia) | 4,167.32 mi (6,706.66 km) |
| Alton to Dothan (Alabama) | 4,344.46 mi (6,991.73 km) |
| Alton to Douglas (Arizona) | 5,280.22 mi (8,497.69 km) |
| Alton to Douglas (Georgia) | 4,224.89 mi (6,799.30 km) |
| Alton to Douglasville (Georgia) | 4,193.32 mi (6,748.49 km) |
| Alton to Dover (Delaware) | 3,563.78 mi (5,735.35 km) |
| Alton to Dover (New Hampshire) | 3,203.17 mi (5,155.01 km) |
