| Sintra to St. Simons (Georgia) | 4,004.90 mi (6,445.26 km) |
| Sintra to Stafford (Texas) | 4,782.02 mi (7,695.92 km) |
| Sintra to Stallings (North Carolina) | 3,841.04 mi (6,181.56 km) |
| Sintra to Stamford (Connecticut) | 3,323.54 mi (5,348.72 km) |
| Sintra to Stanford (California) | 5,657.69 mi (9,105.17 km) |
| Sintra to Stanton (California) | 5,654.54 mi (9,100.10 km) |
| Sintra to Star (Idaho) | 5,147.50 mi (8,284.10 km) |
| Sintra to Starkville (Mississippi) | 4,305.50 mi (6,929.03 km) |
| Sintra to State College (Pennsylvania) | 3,541.11 mi (5,698.87 km) |
| Sintra to Staten Island (New York) | 3,364.82 mi (5,415.16 km) |
| Sintra to Statesboro (Georgia) | 3,983.09 mi (6,410.16 km) |
| Sintra to Statesville (North Carolina) | 3,830.98 mi (6,165.36 km) |
| Sintra to Staunton (Virginia) | 3,670.86 mi (5,907.68 km) |
| Sintra to Steamboat Springs (Colorado) | 4,886.92 mi (7,864.73 km) |
| Sintra to Steiner Ranch (Texas) | 4,869.16 mi (7,836.16 km) |
