| Sierpc to Alfena | 1,536.86 mi (2,473.34 km) |
| Sierpc to Alijo | 1,494.20 mi (2,404.69 km) |
| Sierpc to Aljustrel | 1,682.83 mi (2,708.26 km) |
| Sierpc to Almada | 1,682.22 mi (2,707.27 km) |
| Sierpc to Almargem | 1,678.37 mi (2,701.08 km) |
| Sierpc to Almeirim | 1,636.26 mi (2,633.31 km) |
| Sierpc to Amadora | 1,682.49 mi (2,707.70 km) |
| Sierpc to Amarante | 1,517.65 mi (2,442.41 km) |
| Sierpc to Amares | 1,512.23 mi (2,433.70 km) |
| Sierpc to Amora | 1,683.36 mi (2,709.10 km) |
| Sierpc to Anadia | 1,570.41 mi (2,527.33 km) |
| Sierpc to Angra do Heroismo | 2,411.14 mi (3,880.35 km) |
| Sierpc to Ansiao | 1,594.80 mi (2,566.58 km) |
| Sierpc to Anta | 1,551.29 mi (2,496.56 km) |
| Sierpc to Arcos de Valdevez | 1,505.28 mi (2,422.52 km) |
