| Sintra to Hicksville (New York) | 3,329.78 mi (5,358.76 km) |
| Sintra to Hidalgo (Texas) | 5,054.88 mi (8,135.04 km) |
| Sintra to High Point (North Carolina) | 3,780.56 mi (6,084.22 km) |
| Sintra to Highland (California) | 5,604.74 mi (9,019.96 km) |
| Sintra to Highland (Illinois) | 4,169.54 mi (6,710.22 km) |
| Sintra to Highland (Indiana) | 3,978.24 mi (6,402.37 km) |
| Sintra to Highland (Utah) | 5,099.59 mi (8,207.00 km) |
| Sintra to Highland City (Florida) | 4,141.38 mi (6,664.90 km) |
| Sintra to Highland Park (Illinois) | 3,975.88 mi (6,398.56 km) |
| Sintra to Highland Park (New Jersey) | 3,380.53 mi (5,440.44 km) |
| Sintra to Highland Springs (Virginia) | 3,601.45 mi (5,795.97 km) |
| Sintra to Highland Village (Texas) | 4,723.96 mi (7,602.49 km) |
| Sintra to Highlands Ranch (Colorado) | 4,843.14 mi (7,794.28 km) |
| Sintra to Hillcrest (California) | 5,622.54 mi (9,048.61 km) |
| Sintra to Hillcrest Heights (Maryland) | 3,548.19 mi (5,710.27 km) |
