| Cities | Distance |
|---|---|
| Sinnai to Arcozelo | 947.96 mi (1,525.60 km) |
| Sinnai to Arganil | 917.32 mi (1,476.28 km) |
| Sinnai to Arouca | 927.19 mi (1,492.16 km) |
| Sinnai to Arruda dos Vinhos | 977.61 mi (1,573.30 km) |
| Sinnai to Aveiro | 948.20 mi (1,525.98 km) |
| Sinnai to Aver-o-Mar | 955.59 mi (1,537.87 km) |
| Sinnai to Aves | 931.46 mi (1,499.04 km) |
| Sinnai to Azambuja | 966.26 mi (1,555.04 km) |
| Sinnai to Baiao | 916.68 mi (1,475.26 km) |
| Sinnai to Barcelos | 948.13 mi (1,525.88 km) |
| Sinnai to Barreiro | 980.54 mi (1,578.02 km) |
| Sinnai to Batalha | 958.84 mi (1,543.10 km) |
| Sinnai to Beja | 924.53 mi (1,487.88 km) |
| Sinnai to Belas | 990.41 mi (1,593.91 km) |
| Sinnai to Benavente | 963.53 mi (1,550.65 km) |