| Sintra to Accokeek (Maryland) | 3,554.45 mi (5,720.33 km) |
| Sintra to Acworth (Georgia) | 4,077.02 mi (6,561.33 km) |
| Sintra to Ada (Oklahoma) | 4,642.34 mi (7,471.12 km) |
| Sintra to Addison (Illinois) | 3,992.48 mi (6,425.28 km) |
| Sintra to Addison (Texas) | 4,717.92 mi (7,592.76 km) |
| Sintra to Adelanto (California) | 5,595.05 mi (9,004.36 km) |
| Sintra to Adelphi (Maryland) | 3,543.86 mi (5,703.29 km) |
| Sintra to Adrian (Michigan) | 3,808.00 mi (6,128.38 km) |
| Sintra to Affton (Missouri) | 4,207.09 mi (6,770.66 km) |
| Sintra to Agoura Hills (California) | 5,671.08 mi (9,126.72 km) |
| Sintra to Aguadilla (Puerto Rico) | 3,707.75 mi (5,967.05 km) |
| Sintra to Aiken (South Carolina) | 3,945.04 mi (6,348.93 km) |
| Sintra to Akron (Ohio) | 3,710.50 mi (5,971.47 km) |
| Sintra to Alabaster (Alabama) | 4,213.26 mi (6,780.59 km) |
| Sintra to Alachua (Florida) | 4,109.43 mi (6,613.49 km) |
