| Sintra to Amelia | 1,168.13 mi (1,879.92 km) |
| Sintra to Anagni | 1,202.29 mi (1,934.90 km) |
| Sintra to Ancona | 1,231.81 mi (1,982.40 km) |
| Sintra to Andria | 1,364.67 mi (2,196.23 km) |
| Sintra to Angri | 1,275.24 mi (2,052.30 km) |
| Sintra to Anguillara Sabazia | 1,157.81 mi (1,863.31 km) |
| Sintra to Anzio | 1,174.22 mi (1,889.73 km) |
| Sintra to Anzola dell'Emilia | 1,130.33 mi (1,819.10 km) |
| Sintra to Aosta | 976.55 mi (1,571.61 km) |
| Sintra to Apricena | 1,319.55 mi (2,123.62 km) |
| Sintra to Aprilia | 1,175.66 mi (1,892.03 km) |
| Sintra to Aradeo | 1,465.03 mi (2,357.74 km) |
| Sintra to Aragona | 1,251.32 mi (2,013.80 km) |
| Sintra to Arco | 1,141.55 mi (1,837.15 km) |
| Sintra to Arcola | 1,061.13 mi (1,707.72 km) |
