| Sintra to Port Chester (New York) | 3,331.20 mi (5,361.05 km) |
| Sintra to Port Hueneme (California) | 5,689.33 mi (9,156.10 km) |
| Sintra to Port Huron (Michigan) | 3,703.47 mi (5,960.15 km) |
| Sintra to Port Lavaca (Texas) | 4,874.18 mi (7,844.24 km) |
| Sintra to Port Neches (Texas) | 4,687.68 mi (7,544.09 km) |
| Sintra to Port Orange (Florida) | 4,056.05 mi (6,527.59 km) |
| Sintra to Port Orchard (Washington) | 5,201.22 mi (8,370.55 km) |
| Sintra to Port Royal (South Carolina) | 3,930.70 mi (6,325.85 km) |
| Sintra to Port Salerno (Florida) | 4,081.55 mi (6,568.62 km) |
| Sintra to Port St. John (Florida) | 4,067.41 mi (6,545.86 km) |
| Sintra to Port St. Lucie (Florida) | 4,087.30 mi (6,577.88 km) |
| Sintra to Port Washington (New York) | 3,335.78 mi (5,368.42 km) |
| Sintra to Port Washington (Wisconsin) | 3,944.40 mi (6,347.90 km) |
| Sintra to Port Wentworth (Georgia) | 3,961.48 mi (6,375.39 km) |
| Sintra to Portage (Indiana) | 3,964.10 mi (6,379.60 km) |
