| Riverdale to Arcos de Valdevez | 4,057.73 mi (6,530.29 km) |
| Riverdale to Arcozelo | 4,064.82 mi (6,541.70 km) |
| Riverdale to Arganil | 4,113.19 mi (6,619.54 km) |
| Riverdale to Arouca | 4,087.02 mi (6,577.43 km) |
| Riverdale to Arruda dos Vinhos | 4,091.93 mi (6,585.33 km) |
| Riverdale to Aveiro | 4,073.99 mi (6,556.45 km) |
| Riverdale to Aver-o-Mar | 4,050.57 mi (6,518.77 km) |
| Riverdale to Aves | 4,072.71 mi (6,554.40 km) |
| Riverdale to Azambuja | 4,100.01 mi (6,598.33 km) |
| Riverdale to Baiao | 4,092.04 mi (6,585.50 km) |
| Riverdale to Barcelos | 4,055.49 mi (6,526.68 km) |
| Riverdale to Barreiro | 4,099.53 mi (6,597.56 km) |
| Riverdale to Batalha | 4,089.48 mi (6,581.39 km) |
| Riverdale to Beja | 4,175.03 mi (6,719.06 km) |
| Riverdale to Belas | 4,086.56 mi (6,576.69 km) |
