| Tonypandy to Dardenne Prairie (Missouri) | 4,082.58 mi (6,570.28 km) |
| Tonypandy to Darien (Illinois) | 3,836.13 mi (6,173.66 km) |
| Tonypandy to Davenport (Iowa) | 3,945.60 mi (6,349.82 km) |
| Tonypandy to Davidson (North Carolina) | 3,838.73 mi (6,177.83 km) |
| Tonypandy to Davie (Florida) | 4,274.14 mi (6,878.56 km) |
| Tonypandy to Davis (California) | 5,183.15 mi (8,341.48 km) |
| Tonypandy to Dayton (Nevada) | 5,076.33 mi (8,169.56 km) |
| Tonypandy to Dayton (Ohio) | 3,777.26 mi (6,078.91 km) |
| Tonypandy to Daytona Beach (Florida) | 4,152.97 mi (6,683.56 km) |
| Tonypandy to De Pere (Wisconsin) | 3,718.70 mi (5,984.67 km) |
| Tonypandy to De Witt (New York) | 3,309.58 mi (5,326.25 km) |
| Tonypandy to Dearborn (Michigan) | 3,624.57 mi (5,833.18 km) |
| Tonypandy to Dearborn Heights (Michigan) | 3,626.92 mi (5,836.97 km) |
| Tonypandy to DeBary (Florida) | 4,178.22 mi (6,724.20 km) |
| Tonypandy to Decatur (Alabama) | 4,134.75 mi (6,654.24 km) |
