| Opfikon to Dumas (Texas) | 5,262.24 mi (8,468.76 km) |
| Opfikon to Dumont (New Jersey) | 3,918.55 mi (6,306.30 km) |
| Opfikon to Duncan (Oklahoma) | 5,179.45 mi (8,335.52 km) |
| Opfikon to Duncanville (Texas) | 5,237.38 mi (8,428.75 km) |
| Opfikon to Dundalk (Maryland) | 4,093.88 mi (6,588.46 km) |
| Opfikon to Dunedin (Florida) | 4,878.51 mi (7,851.20 km) |
| Opfikon to Dunkirk (New York) | 4,073.60 mi (6,555.83 km) |
| Opfikon to Dunmore (Pennsylvania) | 3,966.33 mi (6,383.19 km) |
| Opfikon to Dunwoody (Georgia) | 4,662.29 mi (7,503.24 km) |
| Opfikon to Durango (Colorado) | 5,396.15 mi (8,684.26 km) |
| Opfikon to Durant (Oklahoma) | 5,148.35 mi (8,285.47 km) |
| Opfikon to Durham (North Carolina) | 4,340.14 mi (6,984.77 km) |
| Opfikon to Dyer (Indiana) | 4,439.59 mi (7,144.83 km) |
| Opfikon to Dyersburg (Tennessee) | 4,769.89 mi (7,676.40 km) |
| Opfikon to Eagan (Minnesota) | 4,495.71 mi (7,235.15 km) |
