| Piqua to Dallas (Oregon) | 1,996.40 mi (3,212.89 km) |
| Piqua to Dallas (Texas) | 860.26 mi (1,384.46 km) |
| Piqua to Dalton (Georgia) | 373.97 mi (601.84 km) |
| Piqua to Daly City (California) | 2,046.05 mi (3,292.81 km) |
| Piqua to Damascus (Maryland) | 379.44 mi (610.65 km) |
| Piqua to Damascus (Oregon) | 1,951.89 mi (3,141.27 km) |
| Piqua to Dana Point (California) | 1,895.04 mi (3,049.77 km) |
| Piqua to Danbury (Connecticut) | 569.88 mi (917.13 km) |
| Piqua to Dania Beach (Florida) | 1,001.52 mi (1,611.80 km) |
| Piqua to Danville (California) | 2,017.46 mi (3,246.79 km) |
| Piqua to Danville (Illinois) | 177.82 mi (286.17 km) |
| Piqua to Danville (Indiana) | 122.61 mi (197.32 km) |
| Piqua to Danville (Kentucky) | 175.70 mi (282.76 km) |
| Piqua to Danville (Virginia) | 359.57 mi (578.67 km) |
| Piqua to Daphne (Alabama) | 689.04 mi (1,108.91 km) |
