| Sintra to Archdale (North Carolina) | 3,781.46 mi (6,085.67 km) |
| Sintra to Arden-Arcade (California) | 5,570.98 mi (8,965.63 km) |
| Sintra to Ardmore (Oklahoma) | 4,685.55 mi (7,540.66 km) |
| Sintra to Ardmore (Pennsylvania) | 3,435.44 mi (5,528.81 km) |
| Sintra to Arecibo (Puerto Rico) | 3,685.06 mi (5,930.54 km) |
| Sintra to Arkadelphia (Arkansas) | 4,491.63 mi (7,228.58 km) |
| Sintra to Arkansas City (Kansas) | 4,575.38 mi (7,363.36 km) |
| Sintra to Arlington (Tennessee) | 4,285.17 mi (6,896.31 km) |
| Sintra to Arlington (Texas) | 4,741.79 mi (7,631.17 km) |
| Sintra to Arlington (Virginia) | 3,553.89 mi (5,719.43 km) |
| Sintra to Arlington (Washington) | 5,153.18 mi (8,293.24 km) |
| Sintra to Arlington Heights (Illinois) | 3,986.42 mi (6,415.52 km) |
| Sintra to Arnold (Maryland) | 3,519.56 mi (5,664.19 km) |
| Sintra to Arnold (Missouri) | 4,213.26 mi (6,780.59 km) |
| Sintra to Arroyo Grande (California) | 5,702.15 mi (9,176.72 km) |
