| Rickmansworth to Dumas (Texas) | 4,764.39 mi (7,667.54 km) |
| Rickmansworth to Dumont (New Jersey) | 3,433.94 mi (5,526.40 km) |
| Rickmansworth to Duncan (Oklahoma) | 4,682.78 mi (7,536.21 km) |
| Rickmansworth to Duncanville (Texas) | 4,742.21 mi (7,631.85 km) |
| Rickmansworth to Dundalk (Maryland) | 3,609.56 mi (5,809.02 km) |
| Rickmansworth to Dunedin (Florida) | 4,407.20 mi (7,092.71 km) |
| Rickmansworth to Dunkirk (New York) | 3,581.50 mi (5,763.87 km) |
| Rickmansworth to Dunmore (Pennsylvania) | 3,479.09 mi (5,599.06 km) |
| Rickmansworth to Dunwoody (Georgia) | 4,177.52 mi (6,723.08 km) |
| Rickmansworth to Durango (Colorado) | 4,899.68 mi (7,885.27 km) |
| Rickmansworth to Durant (Oklahoma) | 4,652.66 mi (7,487.73 km) |
| Rickmansworth to Durham (North Carolina) | 3,859.00 mi (6,210.46 km) |
| Rickmansworth to Dyer (Indiana) | 3,943.59 mi (6,346.60 km) |
| Rickmansworth to Dyersburg (Tennessee) | 4,277.23 mi (6,883.54 km) |
| Rickmansworth to Eagan (Minnesota) | 3,997.91 mi (6,434.02 km) |
