| Sintra to Ashwaubenon (Wisconsin) | 3,922.53 mi (6,312.71 km) |
| Sintra to Aspen Hill (Maryland) | 3,547.27 mi (5,708.79 km) |
| Sintra to Astoria (Oregon) | 5,303.32 mi (8,534.87 km) |
| Sintra to Atascadero (California) | 5,689.47 mi (9,156.32 km) |
| Sintra to Atascocita (Texas) | 4,750.13 mi (7,644.60 km) |
| Sintra to Atchison (Kansas) | 4,398.77 mi (7,079.13 km) |
| Sintra to Athens (Alabama) | 4,166.93 mi (6,706.02 km) |
| Sintra to Athens (Georgia) | 4,014.76 mi (6,461.13 km) |
| Sintra to Athens (Ohio) | 3,787.10 mi (6,094.74 km) |
| Sintra to Athens (Tennessee) | 4,028.14 mi (6,482.67 km) |
| Sintra to Athens (Texas) | 4,697.35 mi (7,559.66 km) |
| Sintra to Atlanta (Georgia) | 4,074.12 mi (6,556.66 km) |
| Sintra to Atlantic Beach (Florida) | 4,034.67 mi (6,493.17 km) |
| Sintra to Atlantic City (New Jersey) | 3,409.33 mi (5,486.78 km) |
| Sintra to Attleboro (Massachusetts) | 3,194.31 mi (5,140.74 km) |
