| Rockford to Arcos de Valdevez | 3,968.33 mi (6,386.42 km) |
| Rockford to Arcozelo | 3,985.89 mi (6,414.67 km) |
| Rockford to Arganil | 4,041.79 mi (6,504.63 km) |
| Rockford to Arouca | 4,007.89 mi (6,450.08 km) |
| Rockford to Arruda dos Vinhos | 4,039.69 mi (6,501.25 km) |
| Rockford to Aveiro | 4,000.18 mi (6,437.66 km) |
| Rockford to Aver-o-Mar | 3,967.97 mi (6,385.84 km) |
| Rockford to Aves | 3,987.74 mi (6,417.64 km) |
| Rockford to Azambuja | 4,045.88 mi (6,511.21 km) |
| Rockford to Baiao | 4,009.22 mi (6,452.22 km) |
| Rockford to Barcelos | 3,970.90 mi (6,390.54 km) |
| Rockford to Barreiro | 4,051.06 mi (6,519.54 km) |
| Rockford to Batalha | 4,028.10 mi (6,482.60 km) |
| Rockford to Beja | 4,128.61 mi (6,644.36 km) |
| Rockford to Belas | 4,037.72 mi (6,498.08 km) |
