| Port Talbot to Dardenne Prairie (Missouri) | 4,069.95 mi (6,549.95 km) |
| Port Talbot to Darien (Illinois) | 3,823.64 mi (6,153.55 km) |
| Port Talbot to Davenport (Iowa) | 3,933.31 mi (6,330.05 km) |
| Port Talbot to Davidson (North Carolina) | 3,824.94 mi (6,155.64 km) |
| Port Talbot to Davie (Florida) | 4,259.62 mi (6,855.20 km) |
| Port Talbot to Davis (California) | 5,174.04 mi (8,326.81 km) |
| Port Talbot to Dayton (Nevada) | 5,067.00 mi (8,154.55 km) |
| Port Talbot to Dayton (Ohio) | 3,764.19 mi (6,057.88 km) |
| Port Talbot to Daytona Beach (Florida) | 4,138.70 mi (6,660.59 km) |
| Port Talbot to De Pere (Wisconsin) | 3,706.59 mi (5,965.19 km) |
| Port Talbot to De Witt (New York) | 3,296.29 mi (5,304.87 km) |
| Port Talbot to Dearborn (Michigan) | 3,611.75 mi (5,812.55 km) |
| Port Talbot to Dearborn Heights (Michigan) | 3,614.10 mi (5,816.34 km) |
| Port Talbot to DeBary (Florida) | 4,163.94 mi (6,701.21 km) |
| Port Talbot to Decatur (Alabama) | 4,121.34 mi (6,632.66 km) |
