| Sintra to Shoreview (Minnesota) | 4,128.90 mi (6,644.82 km) |
| Sintra to Shorewood (Illinois) | 4,014.44 mi (6,460.62 km) |
| Sintra to Shorewood (Wisconsin) | 3,952.88 mi (6,361.55 km) |
| Sintra to Short Hills (New Jersey) | 3,369.88 mi (5,423.30 km) |
| Sintra to Short Pump (Virginia) | 3,613.17 mi (5,814.84 km) |
| Sintra to Show Low (Arizona) | 5,284.30 mi (8,504.26 km) |
| Sintra to Shreveport (Louisiana) | 4,587.44 mi (7,382.77 km) |
| Sintra to Sicklerville (New Jersey) | 3,427.00 mi (5,515.22 km) |
| Sintra to Sidney (Ohio) | 3,859.32 mi (6,210.98 km) |
| Sintra to Sierra Madre (California) | 5,640.03 mi (9,076.74 km) |
| Sintra to Sierra Vista (Arizona) | 5,412.77 mi (8,711.01 km) |
| Sintra to Sierra Vista Southeast (Arizona) | 5,412.96 mi (8,711.32 km) |
| Sintra to Signal Hill (California) | 5,661.89 mi (9,111.93 km) |
| Sintra to Sikeston (Missouri) | 4,226.50 mi (6,801.90 km) |
| Sintra to Siloam Springs (Arkansas) | 4,488.57 mi (7,223.66 km) |
