| Sintra to San Diego (California) | 5,661.35 mi (9,111.06 km) |
| Sintra to San Diego Country Estates (California) | 5,638.64 mi (9,074.52 km) |
| Sintra to San Dimas (California) | 5,632.49 mi (9,064.62 km) |
| Sintra to San Fernando (California) | 5,650.93 mi (9,094.29 km) |
| Sintra to San Francisco (California) | 5,652.98 mi (9,097.59 km) |
| Sintra to San Gabriel (California) | 5,645.49 mi (9,085.55 km) |
| Sintra to San Germán (Puerto Rico) | 3,716.13 mi (5,980.54 km) |
| Sintra to San Jacinto (California) | 5,611.61 mi (9,031.01 km) |
| Sintra to San Jose (California) | 5,650.83 mi (9,094.12 km) |
| Sintra to San Juan (Puerto Rico) | 3,650.75 mi (5,875.32 km) |
| Sintra to San Juan (Texas) | 5,046.85 mi (8,122.12 km) |
| Sintra to San Juan Capistrano (California) | 5,653.73 mi (9,098.80 km) |
| Sintra to San Leandro (California) | 5,643.98 mi (9,083.11 km) |
| Sintra to San Lorenzo (California) | 5,644.54 mi (9,084.01 km) |
| Sintra to San Luis (Arizona) | 5,570.63 mi (8,965.07 km) |
