| Simi Valley to Delaware (Ohio) | 1,990.92 mi (3,204.08 km) |
| Simi Valley to Delhi (California) | 246.33 mi (396.43 km) |
| Simi Valley to Delray Beach (Florida) | 2,352.28 mi (3,785.62 km) |
| Simi Valley to Deltona (Florida) | 2,227.35 mi (3,584.58 km) |
| Simi Valley to Deming (New Mexico) | 649.83 mi (1,045.80 km) |
| Simi Valley to Denison (Texas) | 1,267.52 mi (2,039.88 km) |
| Simi Valley to Dent (Ohio) | 1,906.60 mi (3,068.38 km) |
| Simi Valley to Denton (Texas) | 1,241.21 mi (1,997.54 km) |
| Simi Valley to Dentsville (South Carolina) | 2,147.86 mi (3,456.64 km) |
| Simi Valley to Denver (Colorado) | 853.08 mi (1,372.90 km) |
| Simi Valley to Depew (New York) | 2,220.85 mi (3,574.11 km) |
| Simi Valley to Derby (Connecticut) | 2,510.85 mi (4,040.82 km) |
| Simi Valley to Derby (Kansas) | 1,221.28 mi (1,965.46 km) |
| Simi Valley to Des Moines (Iowa) | 1,453.83 mi (2,339.71 km) |
| Simi Valley to Des Moines (Washington) | 925.56 mi (1,489.54 km) |
