| Siniscola to Arcozelo | 957.62 mi (1,541.14 km) |
| Siniscola to Arganil | 932.77 mi (1,501.14 km) |
| Siniscola to Arouca | 937.71 mi (1,509.10 km) |
| Siniscola to Arruda dos Vinhos | 1,000.43 mi (1,610.04 km) |
| Siniscola to Aveiro | 960.66 mi (1,546.03 km) |
| Siniscola to Aver-o-Mar | 962.92 mi (1,549.66 km) |
| Siniscola to Aves | 938.53 mi (1,510.42 km) |
| Siniscola to Azambuja | 988.73 mi (1,591.20 km) |
| Siniscola to Baiao | 925.63 mi (1,489.66 km) |
| Siniscola to Barcelos | 954.71 mi (1,536.45 km) |
| Siniscola to Barreiro | 1,005.31 mi (1,617.89 km) |
| Siniscola to Batalha | 977.66 mi (1,573.38 km) |
| Siniscola to Beja | 954.45 mi (1,536.03 km) |
| Siniscola to Belas | 1,014.34 mi (1,632.42 km) |
| Siniscola to Benavente | 986.68 mi (1,587.91 km) |
