| Frederick to Curtea de Arges | 4,861.47 mi (7,823.79 km) |
| Frederick to Dabuleni | 4,893.54 mi (7,875.39 km) |
| Frederick to Darabani | 4,807.89 mi (7,737.55 km) |
| Frederick to Darmanesti | 4,879.56 mi (7,852.90 km) |
| Frederick to Dej | 4,748.27 mi (7,641.61 km) |
| Frederick to Deva | 4,762.35 mi (7,664.26 km) |
| Frederick to Dolhasca | 4,840.09 mi (7,789.37 km) |
| Frederick to Dorohoi | 4,810.29 mi (7,741.41 km) |
| Frederick to Draganesti-Olt | 4,895.71 mi (7,878.89 km) |
| Frederick to Dragasani | 4,864.75 mi (7,829.06 km) |
| Frederick to Drobeta-Turnu Severin | 4,801.96 mi (7,728.01 km) |
| Frederick to Fagaras | 4,843.82 mi (7,795.38 km) |
| Frederick to Falticeni | 4,827.33 mi (7,768.83 km) |
| Frederick to Fetesti | 5,014.11 mi (8,069.44 km) |
| Frederick to Filiasi | 4,846.11 mi (7,799.07 km) |
