| Sintra to Willow Grove (Pennsylvania) | 3,423.13 mi (5,508.99 km) |
| Sintra to Willowbrook (California) | 5,659.34 mi (9,107.83 km) |
| Sintra to Willowick (Ohio) | 3,693.06 mi (5,943.40 km) |
| Sintra to Wilmette (Illinois) | 3,975.16 mi (6,397.41 km) |
| Sintra to Wilmington (Delaware) | 3,454.21 mi (5,559.02 km) |
| Sintra to Wilmington (North Carolina) | 3,727.45 mi (5,998.76 km) |
| Sintra to Wilmington (Ohio) | 3,867.14 mi (6,223.56 km) |
| Sintra to Wilmington Island (Georgia) | 3,956.27 mi (6,367.00 km) |
| Sintra to Wilson (North Carolina) | 3,683.92 mi (5,928.69 km) |
| Sintra to Wilsonville (Oregon) | 5,307.98 mi (8,542.36 km) |
| Sintra to Wilton Manors (Florida) | 4,114.18 mi (6,621.14 km) |
| Sintra to Wimauma (Florida) | 4,173.15 mi (6,716.03 km) |
| Sintra to Winchester (Kentucky) | 3,928.23 mi (6,321.88 km) |
| Sintra to Winchester (Nevada) | 5,426.62 mi (8,733.31 km) |
| Sintra to Winchester (Virginia) | 3,599.08 mi (5,792.16 km) |
