| Hartlepool to Dallas (Texas) | 4,611.19 mi (7,420.99 km) |
| Hartlepool to Dalton (Georgia) | 4,067.66 mi (6,546.27 km) |
| Hartlepool to Daly City (California) | 5,170.92 mi (8,321.79 km) |
| Hartlepool to Damascus (Maryland) | 3,546.26 mi (5,707.15 km) |
| Hartlepool to Damascus (Oregon) | 4,714.08 mi (7,586.59 km) |
| Hartlepool to Dana Point (California) | 5,279.08 mi (8,495.85 km) |
| Hartlepool to Danbury (Connecticut) | 3,302.41 mi (5,314.71 km) |
| Hartlepool to Dania Beach (Florida) | 4,335.16 mi (6,976.77 km) |
| Hartlepool to Danville (California) | 5,149.46 mi (8,287.25 km) |
| Hartlepool to Danville (Illinois) | 3,894.79 mi (6,268.06 km) |
| Hartlepool to Danville (Indiana) | 3,873.16 mi (6,233.25 km) |
| Hartlepool to Danville (Kentucky) | 3,914.64 mi (6,300.00 km) |
| Hartlepool to Danville (Virginia) | 3,762.82 mi (6,055.68 km) |
| Hartlepool to Daphne (Alabama) | 4,394.51 mi (7,072.28 km) |
| Hartlepool to Darby (Pennsylvania) | 3,440.72 mi (5,537.30 km) |
