| Sintra to Desert Hot Springs (California) | 5,585.04 mi (8,988.25 km) |
| Sintra to DeSoto (Texas) | 4,732.86 mi (7,616.81 km) |
| Sintra to Destin (Florida) | 4,293.45 mi (6,909.64 km) |
| Sintra to Destrehan (Louisiana) | 4,507.70 mi (7,254.44 km) |
| Sintra to Detroit (Michigan) | 3,750.44 mi (6,035.75 km) |
| Sintra to Diamond Bar (California) | 5,637.80 mi (9,073.16 km) |
| Sintra to Diamond Springs (California) | 5,545.14 mi (8,924.04 km) |
| Sintra to Dickinson (North Dakota) | 4,477.03 mi (7,205.09 km) |
| Sintra to Dickinson (Texas) | 4,763.28 mi (7,665.76 km) |
| Sintra to Dickson (Tennessee) | 4,145.22 mi (6,671.08 km) |
| Sintra to Difficult Run (Virginia) | 3,565.47 mi (5,738.07 km) |
| Sintra to Dinuba (California) | 5,586.84 mi (8,991.15 km) |
| Sintra to Discovery Bay (California) | 5,612.27 mi (9,032.07 km) |
| Sintra to Dix Hills (New York) | 3,319.65 mi (5,342.46 km) |
| Sintra to Dixon (California) | 5,595.68 mi (9,005.38 km) |
