| Sintra to Hormigueros (Puerto Rico) | 3,717.66 mi (5,983.00 km) |
| Sintra to Horn Lake (Mississippi) | 4,314.48 mi (6,943.48 km) |
| Sintra to Hot Springs (Arkansas) | 4,477.49 mi (7,205.82 km) |
| Sintra to Hot Springs Village (Arkansas) | 4,467.34 mi (7,189.49 km) |
| Sintra to Houma (Louisiana) | 4,538.95 mi (7,304.73 km) |
| Sintra to Houston (Texas) | 4,767.10 mi (7,671.91 km) |
| Sintra to Howard (Wisconsin) | 3,920.16 mi (6,308.90 km) |
| Sintra to Huber Heights (Ohio) | 3,869.20 mi (6,226.87 km) |
| Sintra to Hudson (Florida) | 4,169.80 mi (6,710.65 km) |
| Sintra to Hudson (Ohio) | 3,702.30 mi (5,958.28 km) |
| Sintra to Hudson (Wisconsin) | 4,114.84 mi (6,622.19 km) |
| Sintra to Hueytown (Alabama) | 4,216.33 mi (6,785.52 km) |
| Sintra to Hugo (Minnesota) | 4,118.63 mi (6,628.29 km) |
| Sintra to Humacao (Puerto Rico) | 3,647.71 mi (5,870.42 km) |
| Sintra to Humble (Texas) | 4,753.09 mi (7,649.36 km) |
