| Porthcawl to Delhi (California) | 5,216.64 mi (8,395.38 km) |
| Porthcawl to Delray Beach (Florida) | 4,237.98 mi (6,820.38 km) |
| Porthcawl to Deltona (Florida) | 4,164.05 mi (6,701.39 km) |
| Porthcawl to Deming (New Mexico) | 5,054.93 mi (8,135.12 km) |
| Porthcawl to Denison (Texas) | 4,551.39 mi (7,324.76 km) |
| Porthcawl to Dent (Ohio) | 3,816.61 mi (6,142.24 km) |
| Porthcawl to Denton (Texas) | 4,601.22 mi (7,404.96 km) |
| Porthcawl to Dentsville (South Carolina) | 3,903.09 mi (6,281.42 km) |
| Porthcawl to Denver (Colorado) | 4,556.65 mi (7,333.22 km) |
| Porthcawl to Depew (New York) | 3,413.84 mi (5,494.04 km) |
| Porthcawl to Derby (Connecticut) | 3,251.41 mi (5,232.64 km) |
| Porthcawl to Derby (Kansas) | 4,387.38 mi (7,060.81 km) |
| Porthcawl to Des Moines (Iowa) | 4,054.40 mi (6,524.93 km) |
| Porthcawl to Des Moines (Washington) | 4,701.59 mi (7,566.49 km) |
| Porthcawl to Des Plaines (Illinois) | 3,814.83 mi (6,139.38 km) |
