| Sintra to Alum Rock (California) | 5,646.63 mi (9,087.37 km) |
| Sintra to Alvin (Texas) | 4,777.64 mi (7,688.87 km) |
| Sintra to Amarillo (Texas) | 4,870.16 mi (7,837.77 km) |
| Sintra to Amelia (Ohio) | 3,898.94 mi (6,274.74 km) |
| Sintra to American Canyon (California) | 5,625.45 mi (9,053.28 km) |
| Sintra to American Fork (Utah) | 5,101.65 mi (8,210.31 km) |
| Sintra to Americus (Georgia) | 4,120.56 mi (6,631.40 km) |
| Sintra to Ames (Iowa) | 4,247.03 mi (6,834.93 km) |
| Sintra to Amherst (Ohio) | 3,735.63 mi (6,011.92 km) |
| Sintra to Ammon (Idaho) | 4,978.76 mi (8,012.53 km) |
| Sintra to Amsterdam (New York) | 3,313.10 mi (5,331.92 km) |
| Sintra to Anacortes (Washington) | 5,155.09 mi (8,296.32 km) |
| Sintra to Anaheim (California) | 5,646.93 mi (9,087.85 km) |
| Sintra to Anchorage (Alaska) | 5,169.17 mi (8,318.98 km) |
| Sintra to Anderson (California) | 5,519.29 mi (8,882.44 km) |
