| Mountain Ash to Dillenburg | 508.51 mi (818.37 km) |
| Mountain Ash to Dillingen | 648.79 mi (1,044.13 km) |
| Mountain Ash to Dillingen | 472.11 mi (759.78 km) |
| Mountain Ash to Dingolfing | 732.10 mi (1,178.20 km) |
| Mountain Ash to Dinkelsbuhl | 628.90 mi (1,012.12 km) |
| Mountain Ash to Dinklage | 492.00 mi (791.79 km) |
| Mountain Ash to Dinslaken | 433.50 mi (697.64 km) |
| Mountain Ash to Dippoldiswalde | 736.91 mi (1,185.94 km) |
| Mountain Ash to Ditzingen | 583.25 mi (938.66 km) |
| Mountain Ash to Dobeln | 710.44 mi (1,143.34 km) |
| Mountain Ash to Doberlug-Kirchhain | 724.86 mi (1,166.56 km) |
| Mountain Ash to Donaueschingen | 588.11 mi (946.47 km) |
| Mountain Ash to Donauworth | 658.93 mi (1,060.45 km) |
| Mountain Ash to Donzdorf | 618.44 mi (995.29 km) |
| Mountain Ash to Dorfen | 727.60 mi (1,170.95 km) |
