| Simi Valley to Dixon (California) | 335.70 mi (540.26 km) |
| Simi Valley to Dixon (Illinois) | 1,666.79 mi (2,682.44 km) |
| Simi Valley to Dobbs Ferry (New York) | 2,471.55 mi (3,977.58 km) |
| Simi Valley to Doctor Phillips (Florida) | 2,222.11 mi (3,576.14 km) |
| Simi Valley to Dodge City (Kansas) | 1,072.32 mi (1,725.74 km) |
| Simi Valley to Dolton (Illinois) | 1,760.98 mi (2,834.02 km) |
| Simi Valley to Donna (Texas) | 1,353.54 mi (2,178.31 km) |
| Simi Valley to Dorado (Puerto Rico) | 3,387.00 mi (5,450.84 km) |
| Simi Valley to Doral (Florida) | 2,354.53 mi (3,789.25 km) |
| Simi Valley to Doraville (Georgia) | 1,963.48 mi (3,159.92 km) |
| Simi Valley to Dothan (Alabama) | 1,940.16 mi (3,122.39 km) |
| Simi Valley to Douglas (Arizona) | 570.96 mi (918.88 km) |
| Simi Valley to Douglas (Georgia) | 2,080.63 mi (3,348.45 km) |
| Simi Valley to Douglasville (Georgia) | 1,941.14 mi (3,123.97 km) |
| Simi Valley to Dover (Delaware) | 2,395.35 mi (3,854.95 km) |
