| Irthlingborough to Dallas (Texas) | 4,702.61 mi (7,568.11 km) |
| Irthlingborough to Dalton (Georgia) | 4,142.32 mi (6,666.42 km) |
| Irthlingborough to Daly City (California) | 5,305.39 mi (8,538.20 km) |
| Irthlingborough to Damascus (Maryland) | 3,617.26 mi (5,821.42 km) |
| Irthlingborough to Damascus (Oregon) | 4,855.39 mi (7,813.99 km) |
| Irthlingborough to Dana Point (California) | 5,403.37 mi (8,695.88 km) |
| Irthlingborough to Danbury (Connecticut) | 3,372.41 mi (5,427.38 km) |
| Irthlingborough to Dania Beach (Florida) | 4,382.60 mi (7,053.11 km) |
| Irthlingborough to Danville (California) | 5,283.47 mi (8,502.92 km) |
| Irthlingborough to Danville (Illinois) | 3,984.88 mi (6,413.05 km) |
| Irthlingborough to Danville (Indiana) | 3,960.72 mi (6,374.16 km) |
| Irthlingborough to Danville (Kentucky) | 3,994.94 mi (6,429.24 km) |
| Irthlingborough to Danville (Virginia) | 3,831.42 mi (6,166.08 km) |
| Irthlingborough to Daphne (Alabama) | 4,466.29 mi (7,187.81 km) |
| Irthlingborough to Darby (Pennsylvania) | 3,509.97 mi (5,648.75 km) |
