| Sintra to Waimea (Hawaii) | 7,823.51 mi (12,590.72 km) |
| Sintra to Waipahu (Hawaii) | 7,808.99 mi (12,567.35 km) |
| Sintra to Waipio (Hawaii) | 7,806.85 mi (12,563.90 km) |
| Sintra to Wake Forest (North Carolina) | 3,706.73 mi (5,965.40 km) |
| Sintra to Wakefield (Virginia) | 3,562.30 mi (5,732.96 km) |
| Sintra to Waldorf (Maryland) | 3,552.10 mi (5,716.55 km) |
| Sintra to Walker (Michigan) | 3,857.25 mi (6,207.64 km) |
| Sintra to Walker Mill (Maryland) | 3,543.26 mi (5,702.33 km) |
| Sintra to Walla Walla (Washington) | 5,112.81 mi (8,228.27 km) |
| Sintra to Wallingford Center (Connecticut) | 3,279.40 mi (5,277.69 km) |
| Sintra to Wallington (New Jersey) | 3,356.31 mi (5,401.45 km) |
| Sintra to Walnut (California) | 5,638.08 mi (9,073.61 km) |
| Sintra to Walnut Creek (California) | 5,629.97 mi (9,060.55 km) |
| Sintra to Walnut Park (California) | 5,656.58 mi (9,103.39 km) |
| Sintra to Waltham (Massachusetts) | 3,182.18 mi (5,121.22 km) |
