| Mountain Ash to Darlaston | 83.52 mi (134.41 km) |
| Mountain Ash to Darlington | 210.69 mi (339.07 km) |
| Mountain Ash to Dartford | 155.48 mi (250.22 km) |
| Mountain Ash to Darton | 152.62 mi (245.61 km) |
| Mountain Ash to Darwen | 144.54 mi (232.61 km) |
| Mountain Ash to Daventry | 102.40 mi (164.80 km) |
| Mountain Ash to Davyhulme | 129.74 mi (208.80 km) |
| Mountain Ash to Dawlish | 76.12 mi (122.51 km) |
| Mountain Ash to Deal | 208.19 mi (335.05 km) |
| Mountain Ash to Denby Dale | 149.30 mi (240.27 km) |
| Mountain Ash to Denton | 133.62 mi (215.04 km) |
| Mountain Ash to Derby | 117.49 mi (189.08 km) |
| Mountain Ash to Derry | 281.04 mi (452.29 km) |
| Mountain Ash to Desborough | 120.78 mi (194.38 km) |
| Mountain Ash to Devizes | 63.66 mi (102.46 km) |
