| River Forest to Arcos de Valdevez | 3,924.84 mi (6,316.41 km) |
| River Forest to Arcozelo | 3,941.54 mi (6,343.30 km) |
| River Forest to Arganil | 3,996.91 mi (6,432.40 km) |
| River Forest to Arouca | 3,963.60 mi (6,378.79 km) |
| River Forest to Arruda dos Vinhos | 3,993.27 mi (6,426.55 km) |
| River Forest to Aveiro | 3,955.43 mi (6,365.66 km) |
| River Forest to Aver-o-Mar | 3,923.91 mi (6,314.92 km) |
| River Forest to Aves | 3,943.90 mi (6,347.09 km) |
| River Forest to Azambuja | 3,999.62 mi (6,436.76 km) |
| River Forest to Baiao | 3,965.23 mi (6,381.43 km) |
| River Forest to Barcelos | 3,927.00 mi (6,319.90 km) |
| River Forest to Barreiro | 4,004.36 mi (6,444.39 km) |
| River Forest to Batalha | 3,982.39 mi (6,409.04 km) |
| River Forest to Beja | 4,081.85 mi (6,569.11 km) |
| River Forest to Belas | 3,991.03 mi (6,422.94 km) |
