| Ianca to Alenquer | 1,900.51 mi (3,058.57 km) |
| Ianca to Alfena | 1,818.14 mi (2,926.01 km) |
| Ianca to Alijo | 1,766.15 mi (2,842.34 km) |
| Ianca to Aljustrel | 1,893.06 mi (3,046.59 km) |
| Ianca to Almada | 1,918.22 mi (3,087.08 km) |
| Ianca to Almargem | 1,918.81 mi (3,088.03 km) |
| Ianca to Almeirim | 1,876.70 mi (3,020.25 km) |
| Ianca to Amadora | 1,920.31 mi (3,090.44 km) |
| Ianca to Amarante | 1,795.15 mi (2,889.01 km) |
| Ianca to Amares | 1,799.72 mi (2,896.37 km) |
| Ianca to Amora | 1,917.89 mi (3,086.55 km) |
| Ianca to Anadia | 1,834.00 mi (2,951.55 km) |
| Ianca to Angra do Heroismo | 2,793.81 mi (4,496.20 km) |
| Ianca to Ansiao | 1,847.77 mi (2,973.70 km) |
| Ianca to Anta | 1,828.68 mi (2,942.98 km) |
