| Porthcawl to Dillenburg | 521.39 mi (839.09 km) |
| Porthcawl to Dillingen | 658.64 mi (1,059.98 km) |
| Porthcawl to Dillingen | 481.44 mi (774.80 km) |
| Porthcawl to Dingolfing | 742.90 mi (1,195.58 km) |
| Porthcawl to Dinkelsbuhl | 639.51 mi (1,029.18 km) |
| Porthcawl to Dinklage | 508.17 mi (817.81 km) |
| Porthcawl to Dinslaken | 447.75 mi (720.59 km) |
| Porthcawl to Dippoldiswalde | 750.99 mi (1,208.60 km) |
| Porthcawl to Ditzingen | 592.85 mi (954.11 km) |
| Porthcawl to Dobeln | 724.72 mi (1,166.32 km) |
| Porthcawl to Doberlug-Kirchhain | 739.79 mi (1,190.57 km) |
| Porthcawl to Donaueschingen | 595.79 mi (958.83 km) |
| Porthcawl to Donauworth | 669.15 mi (1,076.89 km) |
| Porthcawl to Donzdorf | 628.17 mi (1,010.94 km) |
| Porthcawl to Dorfen | 737.74 mi (1,187.28 km) |
