| Sintra to Scottsboro (Alabama) | 4,126.70 mi (6,641.28 km) |
| Sintra to Scottsdale (Arizona) | 5,391.17 mi (8,676.24 km) |
| Sintra to Scranton (Pennsylvania) | 3,419.38 mi (5,502.96 km) |
| Sintra to Seabrook (Maryland) | 3,538.74 mi (5,695.05 km) |
| Sintra to Seabrook (Texas) | 4,756.91 mi (7,655.51 km) |
| Sintra to Seaford (New York) | 3,330.44 mi (5,359.82 km) |
| Sintra to Seagoville (Texas) | 4,715.35 mi (7,588.62 km) |
| Sintra to Seal Beach (California) | 5,660.00 mi (9,108.88 km) |
| Sintra to Searcy (Arkansas) | 4,386.84 mi (7,059.93 km) |
| Sintra to Seaside (California) | 5,681.88 mi (9,144.11 km) |
| Sintra to SeaTac (Washington) | 5,192.01 mi (8,355.72 km) |
| Sintra to Seattle (Washington) | 5,184.73 mi (8,344.01 km) |
| Sintra to Sebastian (Florida) | 4,074.47 mi (6,557.22 km) |
| Sintra to Sebring (Florida) | 4,136.33 mi (6,656.77 km) |
| Sintra to Secaucus (New Jersey) | 3,356.01 mi (5,400.97 km) |
