| Piqua to Annaberg-Buchholz | 4,428.48 mi (7,126.94 km) |
| Piqua to Anrochte | 4,219.59 mi (6,790.78 km) |
| Piqua to Ansbach | 4,384.32 mi (7,055.89 km) |
| Piqua to Apen | 4,145.35 mi (6,671.30 km) |
| Piqua to Apolda | 4,357.47 mi (7,012.68 km) |
| Piqua to Appenweier | 4,310.15 mi (6,936.51 km) |
| Piqua to Arnsberg | 4,216.39 mi (6,785.63 km) |
| Piqua to Arnstadt | 4,342.81 mi (6,989.08 km) |
| Piqua to Aschaffenburg | 4,305.61 mi (6,929.22 km) |
| Piqua to Ascheberg | 4,185.42 mi (6,735.79 km) |
| Piqua to Aschersleben | 4,329.32 mi (6,967.37 km) |
| Piqua to Aschheim | 4,469.55 mi (7,193.05 km) |
| Piqua to Asperg | 4,342.63 mi (6,988.79 km) |
| Piqua to Asslar | 4,258.12 mi (6,852.79 km) |
| Piqua to Attendorn | 4,218.46 mi (6,788.95 km) |
