| Cities | Distance |
|---|---|
| Sinnai to Alfena | 942.44 mi (1,516.72 km) |
| Sinnai to Alijo | 888.09 mi (1,429.23 km) |
| Sinnai to Aljustrel | 941.22 mi (1,514.74 km) |
| Sinnai to Almada | 985.29 mi (1,585.67 km) |
| Sinnai to Almargem | 989.72 mi (1,592.80 km) |
| Sinnai to Almeirim | 951.92 mi (1,531.96 km) |
| Sinnai to Amadora | 988.77 mi (1,591.27 km) |
| Sinnai to Amarante | 918.73 mi (1,478.56 km) |
| Sinnai to Amares | 933.96 mi (1,503.07 km) |
| Sinnai to Amora | 983.73 mi (1,583.16 km) |
| Sinnai to Anadia | 936.96 mi (1,507.90 km) |
| Sinnai to Angra do Heroismo | 1,943.24 mi (3,127.34 km) |
| Sinnai to Ansiao | 938.22 mi (1,509.91 km) |
| Sinnai to Anta | 947.13 mi (1,524.25 km) |
| Sinnai to Arcos de Valdevez | 939.59 mi (1,512.13 km) |